21666424

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{1151}}^1$

素因数の和:1351

約数の個数: 32

約数和(自身を含む): 44029440

約数和(自身を除く): 22363016

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 181, 362, 724, 1151, 1448, 2302, 2353, 4604, 4706, 9208, 9412, 14963, 18824, 29926, 59852, 119704, 208331, 416662, 833324, 1666648, 2708303, 5416606, 10833212, 21666424]

約数ペア:

[(1, 21666424), (2, 10833212), (4, 5416606), (8, 2708303), (13, 1666648), (26, 833324), (52, 416662), (104, 208331), (181, 119704), (362, 59852), (724, 29926), (1151, 18824), (1448, 14963), (2302, 9412), (2353, 9208), (4604, 4706)]