20861672

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{6917}}^1$

素因数の和:6965

約数の個数: 32

約数和(自身を含む): 43583400

約数和(自身を除く): 22721728

約数列:

[1, 2, 4, 8, 13, 26, 29, 52, 58, 104, 116, 232, 377, 754, 1508, 3016, 6917, 13834, 27668, 55336, 89921, 179842, 200593, 359684, 401186, 719368, 802372, 1604744, 2607709, 5215418, 10430836, 20861672]

約数ペア:

[(1, 20861672), (2, 10430836), (4, 5215418), (8, 2607709), (13, 1604744), (26, 802372), (29, 719368), (52, 401186), (58, 359684), (104, 200593), (116, 179842), (232, 89921), (377, 55336), (754, 27668), (1508, 13834), (3016, 6917)]