21447426

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{3571}}^1$

素因数の和:3607

約数の個数: 64

約数和(自身を含む): 57609216

約数和(自身を除く): 36161790

約数列:

[1, 2, 3, 6, 7, 11, 13, 14, 21, 22, 26, 33, 39, 42, 66, 77, 78, 91, 143, 154, 182, 231, 273, 286, 429, 462, 546, 858, 1001, 2002, 3003, 3571, 6006, 7142, 10713, 21426, 24997, 39281, 46423, 49994, 74991, 78562, 92846, 117843, 139269, 149982, 235686, 274967, 278538, 324961, 510653, 549934, 649922, 824901, 974883, 1021306, 1531959, 1649802, 1949766, 3063918, 3574571, 7149142, 10723713, 21447426]

約数ペア:

[(1, 21447426), (2, 10723713), (3, 7149142), (6, 3574571), (7, 3063918), (11, 1949766), (13, 1649802), (14, 1531959), (21, 1021306), (22, 974883), (26, 824901), (33, 649922), (39, 549934), (42, 510653), (66, 324961), (77, 278538), (78, 274967), (91, 235686), (143, 149982), (154, 139269), (182, 117843), (231, 92846), (273, 78562), (286, 74991), (429, 49994), (462, 46423), (546, 39281), (858, 24997), (1001, 21426), (2002, 10713), (3003, 7142), (3571, 6006)]