21670488

素因数分解:

$2^3\times 3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1$

素因数の和:142

約数の個数: 192

約数和(自身を含む): 73881600

約数和(自身を除く): 52211112

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 19, 21, 24, 28, 31, 36, 38, 42, 56, 57, 62, 63, 72, 73, 76, 84, 93, 114, 124, 126, 133, 146, 152, 168, 171, 186, 217, 219, 228, 248, 252, 266, 279, 292, 342, 372, 399, 434, 438, 456, 504, 511, 532, 558, 584, 589, 651, 657, 684, 744, 798, 868, 876, 1022, 1064, 1116, 1178, 1197, 1302, 1314, 1368, 1387, 1533, 1596, 1736, 1752, 1767, 1953, 2044, 2232, 2263, 2356, 2394, 2604, 2628, 2774, 3066, 3192, 3534, 3906, 4088, 4123, 4161, 4526, 4599, 4712, 4788, 5208, 5256, 5301, 5548, 6132, 6789, 7068, 7812, 8246, 8322, 9052, 9198, 9576, 9709, 10602, 11096, 12264, 12369, 12483, 13578, 14136, 15624, 15841, 16492, 16644, 18104, 18396, 19418, 20367, 21204, 24738, 24966, 27156, 29127, 31682, 32984, 33288, 36792, 37107, 38836, 40734, 42408, 42997, 47523, 49476, 49932, 54312, 58254, 63364, 74214, 77672, 81468, 85994, 87381, 95046, 98952, 99864, 116508, 126728, 128991, 142569, 148428, 162936, 171988, 174762, 190092, 233016, 257982, 285138, 296856, 300979, 343976, 349524, 380184, 386973, 515964, 570276, 601958, 699048, 773946, 902937, 1031928, 1140552, 1203916, 1547892, 1805874, 2407832, 2708811, 3095784, 3611748, 5417622, 7223496, 10835244, 21670488]

約数ペア:

[(1, 21670488), (2, 10835244), (3, 7223496), (4, 5417622), (6, 3611748), (7, 3095784), (8, 2708811), (9, 2407832), (12, 1805874), (14, 1547892), (18, 1203916), (19, 1140552), (21, 1031928), (24, 902937), (28, 773946), (31, 699048), (36, 601958), (38, 570276), (42, 515964), (56, 386973), (57, 380184), (62, 349524), (63, 343976), (72, 300979), (73, 296856), (76, 285138), (84, 257982), (93, 233016), (114, 190092), (124, 174762), (126, 171988), (133, 162936), (146, 148428), (152, 142569), (168, 128991), (171, 126728), (186, 116508), (217, 99864), (219, 98952), (228, 95046), (248, 87381), (252, 85994), (266, 81468), (279, 77672), (292, 74214), (342, 63364), (372, 58254), (399, 54312), (434, 49932), (438, 49476), (456, 47523), (504, 42997), (511, 42408), (532, 40734), (558, 38836), (584, 37107), (589, 36792), (651, 33288), (657, 32984), (684, 31682), (744, 29127), (798, 27156), (868, 24966), (876, 24738), (1022, 21204), (1064, 20367), (1116, 19418), (1178, 18396), (1197, 18104), (1302, 16644), (1314, 16492), (1368, 15841), (1387, 15624), (1533, 14136), (1596, 13578), (1736, 12483), (1752, 12369), (1767, 12264), (1953, 11096), (2044, 10602), (2232, 9709), (2263, 9576), (2356, 9198), (2394, 9052), (2604, 8322), (2628, 8246), (2774, 7812), (3066, 7068), (3192, 6789), (3534, 6132), (3906, 5548), (4088, 5301), (4123, 5256), (4161, 5208), (4526, 4788), (4599, 4712)]