21016976

素因数分解:

$2^4\times {\mathrm{127}}^1\times {\mathrm{10343}}^1$

素因数の和:10478

約数の個数: 20

約数和(自身を含む): 41044992

約数和(自身を除く): 20028016

約数列:

[1, 2, 4, 8, 16, 127, 254, 508, 1016, 2032, 10343, 20686, 41372, 82744, 165488, 1313561, 2627122, 5254244, 10508488, 21016976]

約数ペア:

[(1, 21016976), (2, 10508488), (4, 5254244), (8, 2627122), (16, 1313561), (127, 165488), (254, 82744), (508, 41372), (1016, 20686), (2032, 10343)]