20156759541

素因数分解:

$3^2\times {\mathrm{61}}^1\times {\mathrm{2309}}^1\times {\mathrm{15901}}^1$

素因数の和:18277

約数の個数: 24

約数和(自身を含む): 29607297720

約数和(自身を除く): 9450538179

約数列:

[1, 3, 9, 61, 183, 549, 2309, 6927, 15901, 20781, 47703, 140849, 143109, 422547, 969961, 1267641, 2909883, 8729649, 36715409, 110146227, 330438681, 2239639949, 6718919847, 20156759541]

約数ペア:

[(1, 20156759541), (3, 6718919847), (9, 2239639949), (61, 330438681), (183, 110146227), (549, 36715409), (2309, 8729649), (6927, 2909883), (15901, 1267641), (20781, 969961), (47703, 422547), (140849, 143109)]