21948680

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{42209}}^1$

素因数の和:42233

約数の個数: 32

約数和(自身を含む): 53184600

約数和(自身を除く): 31235920

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 42209, 84418, 168836, 211045, 337672, 422090, 548717, 844180, 1097434, 1688360, 2194868, 2743585, 4389736, 5487170, 10974340, 21948680]

約数ペア:

[(1, 21948680), (2, 10974340), (4, 5487170), (5, 4389736), (8, 2743585), (10, 2194868), (13, 1688360), (20, 1097434), (26, 844180), (40, 548717), (52, 422090), (65, 337672), (104, 211045), (130, 168836), (260, 84418), (520, 42209)]