20659518

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^1\times {\mathrm{151}}^1\times {\mathrm{691}}^1$

素因数の和:861

約数の個数: 48

約数和(自身を含む): 49226112

約数和(自身を除く): 28566594

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 33, 66, 99, 151, 198, 302, 453, 691, 906, 1359, 1382, 1661, 2073, 2718, 3322, 4146, 4983, 6219, 7601, 9966, 12438, 14949, 15202, 22803, 29898, 45606, 68409, 104341, 136818, 208682, 313023, 626046, 939069, 1147751, 1878138, 2295502, 3443253, 6886506, 10329759, 20659518]

約数ペア:

[(1, 20659518), (2, 10329759), (3, 6886506), (6, 3443253), (9, 2295502), (11, 1878138), (18, 1147751), (22, 939069), (33, 626046), (66, 313023), (99, 208682), (151, 136818), (198, 104341), (302, 68409), (453, 45606), (691, 29898), (906, 22803), (1359, 15202), (1382, 14949), (1661, 12438), (2073, 9966), (2718, 7601), (3322, 6219), (4146, 4983)]