21791470

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{163}}^1\times {\mathrm{461}}^1$

素因数の和:660

約数の個数: 32

約数和(自身を含む): 40914720

約数和(自身を除く): 19123250

約数列:

[1, 2, 5, 10, 29, 58, 145, 163, 290, 326, 461, 815, 922, 1630, 2305, 4610, 4727, 9454, 13369, 23635, 26738, 47270, 66845, 75143, 133690, 150286, 375715, 751430, 2179147, 4358294, 10895735, 21791470]

約数ペア:

[(1, 21791470), (2, 10895735), (5, 4358294), (10, 2179147), (29, 751430), (58, 375715), (145, 150286), (163, 133690), (290, 75143), (326, 66845), (461, 47270), (815, 26738), (922, 23635), (1630, 13369), (2305, 9454), (4610, 4727)]