21861808

素因数分解:

$2^4\times {\mathrm{239}}^1\times {\mathrm{5717}}^1$

素因数の和:5964

約数の個数: 20

約数和(自身を含む): 42541920

約数和(自身を除く): 20680112

約数列:

[1, 2, 4, 8, 16, 239, 478, 956, 1912, 3824, 5717, 11434, 22868, 45736, 91472, 1366363, 2732726, 5465452, 10930904, 21861808]

約数ペア:

[(1, 21861808), (2, 10930904), (4, 5465452), (8, 2732726), (16, 1366363), (239, 91472), (478, 45736), (956, 22868), (1912, 11434), (3824, 5717)]