20861256

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{66863}}^1$

素因数の和:66885

約数の個数: 32

約数和(自身を含む): 56165760

約数和(自身を除く): 35304504

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 312, 66863, 133726, 200589, 267452, 401178, 534904, 802356, 869219, 1604712, 1738438, 2607657, 3476876, 5215314, 6953752, 10430628, 20861256]

約数ペア:

[(1, 20861256), (2, 10430628), (3, 6953752), (4, 5215314), (6, 3476876), (8, 2607657), (12, 1738438), (13, 1604712), (24, 869219), (26, 802356), (39, 534904), (52, 401178), (78, 267452), (104, 200589), (156, 133726), (312, 66863)]