21218648

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{5881}}^1$

素因数の和:5939

約数の個数: 32

約数和(自身を含む): 44467920

約数和(自身を除く): 23249272

約数列:

[1, 2, 4, 8, 11, 22, 41, 44, 82, 88, 164, 328, 451, 902, 1804, 3608, 5881, 11762, 23524, 47048, 64691, 129382, 241121, 258764, 482242, 517528, 964484, 1928968, 2652331, 5304662, 10609324, 21218648]

約数ペア:

[(1, 21218648), (2, 10609324), (4, 5304662), (8, 2652331), (11, 1928968), (22, 964484), (41, 517528), (44, 482242), (82, 258764), (88, 241121), (164, 129382), (328, 64691), (451, 47048), (902, 23524), (1804, 11762), (3608, 5881)]