21603688

素因数分解:

$2^3\times {\mathrm{239}}^1\times {\mathrm{11299}}^1$

素因数の和:11544

約数の個数: 16

約数和(自身を含む): 40680000

約数和(自身を除く): 19076312

約数列:

[1, 2, 4, 8, 239, 478, 956, 1912, 11299, 22598, 45196, 90392, 2700461, 5400922, 10801844, 21603688]

約数ペア:

[(1, 21603688), (2, 10801844), (4, 5400922), (8, 2700461), (239, 90392), (478, 45196), (956, 22598), (1912, 11299)]