20540572

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{3911}}^1$

素因数の和:4029

約数の個数: 24

約数和(自身を含む): 39104352

約数和(自身を除く): 18563780

約数列:

[1, 2, 4, 13, 26, 52, 101, 202, 404, 1313, 2626, 3911, 5252, 7822, 15644, 50843, 101686, 203372, 395011, 790022, 1580044, 5135143, 10270286, 20540572]

約数ペア:

[(1, 20540572), (2, 10270286), (4, 5135143), (13, 1580044), (26, 790022), (52, 395011), (101, 203372), (202, 101686), (404, 50843), (1313, 15644), (2626, 7822), (3911, 5252)]