21905964

素因数分解:

$2^2\times 3^5\times {\mathrm{31}}^1\times {\mathrm{727}}^1$

素因数の和:777

約数の個数: 72

約数和(自身を含む): 59358208

約数和(自身を除く): 37452244

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 31, 36, 54, 62, 81, 93, 108, 124, 162, 186, 243, 279, 324, 372, 486, 558, 727, 837, 972, 1116, 1454, 1674, 2181, 2511, 2908, 3348, 4362, 5022, 6543, 7533, 8724, 10044, 13086, 15066, 19629, 22537, 26172, 30132, 39258, 45074, 58887, 67611, 78516, 90148, 117774, 135222, 176661, 202833, 235548, 270444, 353322, 405666, 608499, 706644, 811332, 1216998, 1825497, 2433996, 3650994, 5476491, 7301988, 10952982, 21905964]

約数ペア:

[(1, 21905964), (2, 10952982), (3, 7301988), (4, 5476491), (6, 3650994), (9, 2433996), (12, 1825497), (18, 1216998), (27, 811332), (31, 706644), (36, 608499), (54, 405666), (62, 353322), (81, 270444), (93, 235548), (108, 202833), (124, 176661), (162, 135222), (186, 117774), (243, 90148), (279, 78516), (324, 67611), (372, 58887), (486, 45074), (558, 39258), (727, 30132), (837, 26172), (972, 22537), (1116, 19629), (1454, 15066), (1674, 13086), (2181, 10044), (2511, 8724), (2908, 7533), (3348, 6543), (4362, 5022)]