21946808

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{5147}}^1$

素因数の和:5207

約数の個数: 32

約数和(自身を含む): 45405360

約数和(自身を除く): 23458552

約数列:

[1, 2, 4, 8, 13, 26, 41, 52, 82, 104, 164, 328, 533, 1066, 2132, 4264, 5147, 10294, 20588, 41176, 66911, 133822, 211027, 267644, 422054, 535288, 844108, 1688216, 2743351, 5486702, 10973404, 21946808]

約数ペア:

[(1, 21946808), (2, 10973404), (4, 5486702), (8, 2743351), (13, 1688216), (26, 844108), (41, 535288), (52, 422054), (82, 267644), (104, 211027), (164, 133822), (328, 66911), (533, 41176), (1066, 20588), (2132, 10294), (4264, 5147)]