21206432

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{2683}}^1$

素因数の和:2725

約数の個数: 48

約数和(自身を含む): 47345760

約数和(自身を除く): 26139328

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 32, 38, 52, 76, 104, 152, 208, 247, 304, 416, 494, 608, 988, 1976, 2683, 3952, 5366, 7904, 10732, 21464, 34879, 42928, 50977, 69758, 85856, 101954, 139516, 203908, 279032, 407816, 558064, 662701, 815632, 1116128, 1325402, 1631264, 2650804, 5301608, 10603216, 21206432]

約数ペア:

[(1, 21206432), (2, 10603216), (4, 5301608), (8, 2650804), (13, 1631264), (16, 1325402), (19, 1116128), (26, 815632), (32, 662701), (38, 558064), (52, 407816), (76, 279032), (104, 203908), (152, 139516), (208, 101954), (247, 85856), (304, 69758), (416, 50977), (494, 42928), (608, 34879), (988, 21464), (1976, 10732), (2683, 7904), (3952, 5366)]