21464156

素因数分解:

$2^2\times 7^2\times {\mathrm{41}}^1\times {\mathrm{2671}}^1$

素因数の和:2730

約数の個数: 36

約数和(自身を含む): 44777376

約数和(自身を除く): 23313220

約数列:

[1, 2, 4, 7, 14, 28, 41, 49, 82, 98, 164, 196, 287, 574, 1148, 2009, 2671, 4018, 5342, 8036, 10684, 18697, 37394, 74788, 109511, 130879, 219022, 261758, 438044, 523516, 766577, 1533154, 3066308, 5366039, 10732078, 21464156]

約数ペア:

[(1, 21464156), (2, 10732078), (4, 5366039), (7, 3066308), (14, 1533154), (28, 766577), (41, 523516), (49, 438044), (82, 261758), (98, 219022), (164, 130879), (196, 109511), (287, 74788), (574, 37394), (1148, 18697), (2009, 10684), (2671, 8036), (4018, 5342)]