21991242

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{40277}}^1$

素因数の和:40302

約数の個数: 32

約数和(自身を含む): 54133632

約数和(自身を除く): 32142390

約数列:

[1, 2, 3, 6, 7, 13, 14, 21, 26, 39, 42, 78, 91, 182, 273, 546, 40277, 80554, 120831, 241662, 281939, 523601, 563878, 845817, 1047202, 1570803, 1691634, 3141606, 3665207, 7330414, 10995621, 21991242]

約数ペア:

[(1, 21991242), (2, 10995621), (3, 7330414), (6, 3665207), (7, 3141606), (13, 1691634), (14, 1570803), (21, 1047202), (26, 845817), (39, 563878), (42, 523601), (78, 281939), (91, 241662), (182, 120831), (273, 80554), (546, 40277)]