21261592

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{307}}^1\times {\mathrm{787}}^1$

素因数の和:1111

約数の個数: 32

約数和(自身を含む): 43686720

約数和(自身を除く): 22425128

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 307, 614, 787, 1228, 1574, 2456, 3148, 3377, 6296, 6754, 8657, 13508, 17314, 27016, 34628, 69256, 241609, 483218, 966436, 1932872, 2657699, 5315398, 10630796, 21261592]

約数ペア:

[(1, 21261592), (2, 10630796), (4, 5315398), (8, 2657699), (11, 1932872), (22, 966436), (44, 483218), (88, 241609), (307, 69256), (614, 34628), (787, 27016), (1228, 17314), (1574, 13508), (2456, 8657), (3148, 6754), (3377, 6296)]