21053164

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{478481}}^1$

素因数の和:478496

約数の個数: 12

約数和(自身を含む): 40192488

約数和(自身を除く): 19139324

約数列:

[1, 2, 4, 11, 22, 44, 478481, 956962, 1913924, 5263291, 10526582, 21053164]

約数ペア:

[(1, 21053164), (2, 10526582), (4, 5263291), (11, 1913924), (22, 956962), (44, 478481)]