21385966

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{1523}}^1$

素因数の和:1608

約数の個数: 32

約数和(自身を含む): 39502080

約数和(自身を除く): 18116114

約数列:

[1, 2, 7, 14, 17, 34, 59, 118, 119, 238, 413, 826, 1003, 1523, 2006, 3046, 7021, 10661, 14042, 21322, 25891, 51782, 89857, 179714, 181237, 362474, 628999, 1257998, 1527569, 3055138, 10692983, 21385966]

約数ペア:

[(1, 21385966), (2, 10692983), (7, 3055138), (14, 1527569), (17, 1257998), (34, 628999), (59, 362474), (118, 181237), (119, 179714), (238, 89857), (413, 51782), (826, 25891), (1003, 21322), (1523, 14042), (2006, 10661), (3046, 7021)]