21230690

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{829}}^1$

素因数の和:1046

約数の個数: 32

約数和(自身を含む): 41413680

約数和(自身を除く): 20182990

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 197, 394, 829, 985, 1658, 1970, 2561, 4145, 5122, 8290, 10777, 12805, 21554, 25610, 53885, 107770, 163313, 326626, 816565, 1633130, 2123069, 4246138, 10615345, 21230690]

約数ペア:

[(1, 21230690), (2, 10615345), (5, 4246138), (10, 2123069), (13, 1633130), (26, 816565), (65, 326626), (130, 163313), (197, 107770), (394, 53885), (829, 25610), (985, 21554), (1658, 12805), (1970, 10777), (2561, 8290), (4145, 5122)]