21175728

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{107}}^1$

素因数の和:175

約数の個数: 160

約数和(自身を含む): 68567040

約数和(自身を除く): 47391312

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 19, 21, 24, 28, 31, 38, 42, 48, 56, 57, 62, 76, 84, 93, 107, 112, 114, 124, 133, 152, 168, 186, 214, 217, 228, 248, 266, 304, 321, 336, 372, 399, 428, 434, 456, 496, 532, 589, 642, 651, 744, 749, 798, 856, 868, 912, 1064, 1178, 1284, 1302, 1488, 1498, 1596, 1712, 1736, 1767, 2033, 2128, 2247, 2356, 2568, 2604, 2996, 3192, 3317, 3472, 3534, 4066, 4123, 4494, 4712, 5136, 5208, 5992, 6099, 6384, 6634, 7068, 8132, 8246, 8988, 9424, 9951, 10416, 11984, 12198, 12369, 13268, 14136, 14231, 16264, 16492, 17976, 19902, 23219, 24396, 24738, 26536, 28272, 28462, 32528, 32984, 35952, 39804, 42693, 46438, 48792, 49476, 53072, 56924, 63023, 65968, 69657, 79608, 85386, 92876, 97584, 98952, 113848, 126046, 139314, 159216, 170772, 185752, 189069, 197904, 227696, 252092, 278628, 341544, 371504, 378138, 441161, 504184, 557256, 683088, 756276, 882322, 1008368, 1114512, 1323483, 1512552, 1764644, 2646966, 3025104, 3529288, 5293932, 7058576, 10587864, 21175728]

約数ペア:

[(1, 21175728), (2, 10587864), (3, 7058576), (4, 5293932), (6, 3529288), (7, 3025104), (8, 2646966), (12, 1764644), (14, 1512552), (16, 1323483), (19, 1114512), (21, 1008368), (24, 882322), (28, 756276), (31, 683088), (38, 557256), (42, 504184), (48, 441161), (56, 378138), (57, 371504), (62, 341544), (76, 278628), (84, 252092), (93, 227696), (107, 197904), (112, 189069), (114, 185752), (124, 170772), (133, 159216), (152, 139314), (168, 126046), (186, 113848), (214, 98952), (217, 97584), (228, 92876), (248, 85386), (266, 79608), (304, 69657), (321, 65968), (336, 63023), (372, 56924), (399, 53072), (428, 49476), (434, 48792), (456, 46438), (496, 42693), (532, 39804), (589, 35952), (642, 32984), (651, 32528), (744, 28462), (749, 28272), (798, 26536), (856, 24738), (868, 24396), (912, 23219), (1064, 19902), (1178, 17976), (1284, 16492), (1302, 16264), (1488, 14231), (1498, 14136), (1596, 13268), (1712, 12369), (1736, 12198), (1767, 11984), (2033, 10416), (2128, 9951), (2247, 9424), (2356, 8988), (2568, 8246), (2604, 8132), (2996, 7068), (3192, 6634), (3317, 6384), (3472, 6099), (3534, 5992), (4066, 5208), (4123, 5136), (4494, 4712)]