21639424

素因数分解:

$2^8\times {\mathrm{137}}^1\times {\mathrm{617}}^1$

素因数の和:770

約数の個数: 36

約数和(自身を含む): 43580124

約数和(自身を除く): 21940700

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 137, 256, 274, 548, 617, 1096, 1234, 2192, 2468, 4384, 4936, 8768, 9872, 17536, 19744, 35072, 39488, 78976, 84529, 157952, 169058, 338116, 676232, 1352464, 2704928, 5409856, 10819712, 21639424]

約数ペア:

[(1, 21639424), (2, 10819712), (4, 5409856), (8, 2704928), (16, 1352464), (32, 676232), (64, 338116), (128, 169058), (137, 157952), (256, 84529), (274, 78976), (548, 39488), (617, 35072), (1096, 19744), (1234, 17536), (2192, 9872), (2468, 8768), (4384, 4936)]