21659848

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{20357}}^1$

素因数の和:20389

約数の個数: 32

約数和(自身を含む): 48859200

約数和(自身を除く): 27199352

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 56, 76, 133, 152, 266, 532, 1064, 20357, 40714, 81428, 142499, 162856, 284998, 386783, 569996, 773566, 1139992, 1547132, 2707481, 3094264, 5414962, 10829924, 21659848]

約数ペア:

[(1, 21659848), (2, 10829924), (4, 5414962), (7, 3094264), (8, 2707481), (14, 1547132), (19, 1139992), (28, 773566), (38, 569996), (56, 386783), (76, 284998), (133, 162856), (152, 142499), (266, 81428), (532, 40714), (1064, 20357)]