21940814

素因数分解:

$2^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{17609}}^1$

素因数の和:17707

約数の個数: 16

約数和(自身を含む): 38037600

約数和(自身を除く): 16096786

約数列:

[1, 2, 7, 14, 89, 178, 623, 1246, 17609, 35218, 123263, 246526, 1567201, 3134402, 10970407, 21940814]

約数ペア:

[(1, 21940814), (2, 10970407), (7, 3134402), (14, 1567201), (89, 246526), (178, 123263), (623, 35218), (1246, 17609)]