21257722010

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{647}}^1\times {\mathrm{469369}}^1$

素因数の和:470030

約数の個数: 32

約数和(自身を含む): 43797853440

約数和(自身を除く): 22540131430

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 647, 1294, 3235, 4529, 6470, 9058, 22645, 45290, 469369, 938738, 2346845, 3285583, 4693690, 6571166, 16427915, 32855830, 303681743, 607363486, 1518408715, 2125772201, 3036817430, 4251544402, 10628861005, 21257722010]

約数ペア:

[(1, 21257722010), (2, 10628861005), (5, 4251544402), (7, 3036817430), (10, 2125772201), (14, 1518408715), (35, 607363486), (70, 303681743), (647, 32855830), (1294, 16427915), (3235, 6571166), (4529, 4693690), (6470, 3285583), (9058, 2346845), (22645, 938738), (45290, 469369)]