21638396

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{3889}}^1$

素因数の和:4013

約数の個数: 24

約数和(自身を含む): 41171760

約数和(自身を除く): 19533364

約数列:

[1, 2, 4, 13, 26, 52, 107, 214, 428, 1391, 2782, 3889, 5564, 7778, 15556, 50557, 101114, 202228, 416123, 832246, 1664492, 5409599, 10819198, 21638396]

約数ペア:

[(1, 21638396), (2, 10819198), (4, 5409599), (13, 1664492), (26, 832246), (52, 416123), (107, 202228), (214, 101114), (428, 50557), (1391, 15556), (2782, 7778), (3889, 5564)]