21648858

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{997}}^1$

素因数の和:1067

約数の個数: 64

約数和(自身を含む): 55185408

約数和(自身を除く): 33536550

約数列:

[1, 2, 3, 6, 7, 11, 14, 21, 22, 33, 42, 47, 66, 77, 94, 141, 154, 231, 282, 329, 462, 517, 658, 987, 997, 1034, 1551, 1974, 1994, 2991, 3102, 3619, 5982, 6979, 7238, 10857, 10967, 13958, 20937, 21714, 21934, 32901, 41874, 46859, 65802, 76769, 93718, 140577, 153538, 230307, 281154, 328013, 460614, 515449, 656026, 984039, 1030898, 1546347, 1968078, 3092694, 3608143, 7216286, 10824429, 21648858]

約数ペア:

[(1, 21648858), (2, 10824429), (3, 7216286), (6, 3608143), (7, 3092694), (11, 1968078), (14, 1546347), (21, 1030898), (22, 984039), (33, 656026), (42, 515449), (47, 460614), (66, 328013), (77, 281154), (94, 230307), (141, 153538), (154, 140577), (231, 93718), (282, 76769), (329, 65802), (462, 46859), (517, 41874), (658, 32901), (987, 21934), (997, 21714), (1034, 20937), (1551, 13958), (1974, 10967), (1994, 10857), (2991, 7238), (3102, 6979), (3619, 5982)]