21076776

素因数分解:

$2^3\times 3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1$

素因数の和:140

約数の個数: 192

約数和(自身を含む): 71884800

約数和(自身を除く): 50808024

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, 71, 72, 76, 84, 93, 114, 124, 126, 133, 142, 152, 168, 171, 186, 213, 217, 228, 248, 252, 266, 279, 284, 342, 372, 399, 426, 434, 456, 497, 504, 532, 558, 568, 589, 639, 651, 684, 744, 798, 852, 868, 994, 1064, 1116, 1178, 1197, 1278, 1302, 1349, 1368, 1491, 1596, 1704, 1736, 1767, 1953, 1988, 2201, 2232, 2356, 2394, 2556, 2604, 2698, 2982, 3192, 3534, 3906, 3976, 4047, 4123, 4402, 4473, 4712, 4788, 5112, 5208, 5301, 5396, 5964, 6603, 7068, 7812, 8094, 8246, 8804, 8946, 9443, 9576, 10602, 10792, 11928, 12141, 12369, 13206, 14136, 15407, 15624, 16188, 16492, 17608, 17892, 18886, 19809, 21204, 24282, 24738, 26412, 28329, 30814, 32376, 32984, 35784, 37107, 37772, 39618, 41819, 42408, 46221, 48564, 49476, 52824, 56658, 61628, 74214, 75544, 79236, 83638, 84987, 92442, 97128, 98952, 113316, 123256, 125457, 138663, 148428, 158472, 167276, 169974, 184884, 226632, 250914, 277326, 292733, 296856, 334552, 339948, 369768, 376371, 501828, 554652, 585466, 679896, 752742, 878199, 1003656, 1109304, 1170932, 1505484, 1756398, 2341864, 2634597, 3010968, 3512796, 5269194, 7025592, 10538388, 21076776]

約数ペア:

[(1, 21076776), (2, 10538388), (3, 7025592), (4, 5269194), (6, 3512796), (7, 3010968), (8, 2634597), (9, 2341864), (12, 1756398), (14, 1505484), (18, 1170932), (19, 1109304), (21, 1003656), (24, 878199), (28, 752742), (31, 679896), (36, 585466), (38, 554652), (42, 501828), (56, 376371), (57, 369768), (62, 339948), (63, 334552), (71, 296856), (72, 292733), (76, 277326), (84, 250914), (93, 226632), (114, 184884), (124, 169974), (126, 167276), (133, 158472), (142, 148428), (152, 138663), (168, 125457), (171, 123256), (186, 113316), (213, 98952), (217, 97128), (228, 92442), (248, 84987), (252, 83638), (266, 79236), (279, 75544), (284, 74214), (342, 61628), (372, 56658), (399, 52824), (426, 49476), (434, 48564), (456, 46221), (497, 42408), (504, 41819), (532, 39618), (558, 37772), (568, 37107), (589, 35784), (639, 32984), (651, 32376), (684, 30814), (744, 28329), (798, 26412), (852, 24738), (868, 24282), (994, 21204), (1064, 19809), (1116, 18886), (1178, 17892), (1197, 17608), (1278, 16492), (1302, 16188), (1349, 15624), (1368, 15407), (1491, 14136), (1596, 13206), (1704, 12369), (1736, 12141), (1767, 11928), (1953, 10792), (1988, 10602), (2201, 9576), (2232, 9443), (2356, 8946), (2394, 8804), (2556, 8246), (2604, 8094), (2698, 7812), (2982, 7068), (3192, 6603), (3534, 5964), (3906, 5396), (3976, 5301), (4047, 5208), (4123, 5112), (4402, 4788), (4473, 4712)]