21889818

素因数分解:

$2^1\times 3^3\times {\mathrm{41}}^1\times {\mathrm{9887}}^1$

素因数の和:9939

約数の個数: 32

約数和(自身を含む): 49835520

約数和(自身を除く): 27945702

約数列:

[1, 2, 3, 6, 9, 18, 27, 41, 54, 82, 123, 246, 369, 738, 1107, 2214, 9887, 19774, 29661, 59322, 88983, 177966, 266949, 405367, 533898, 810734, 1216101, 2432202, 3648303, 7296606, 10944909, 21889818]

約数ペア:

[(1, 21889818), (2, 10944909), (3, 7296606), (6, 3648303), (9, 2432202), (18, 1216101), (27, 810734), (41, 533898), (54, 405367), (82, 266949), (123, 177966), (246, 88983), (369, 59322), (738, 29661), (1107, 19774), (2214, 9887)]