21491886

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{4517}}^1$

素因数の和:4596

約数の個数: 32

約数和(自身を含む): 47059488

約数和(自身を除く): 25567602

約数列:

[1, 2, 3, 6, 13, 26, 39, 61, 78, 122, 183, 366, 793, 1586, 2379, 4517, 4758, 9034, 13551, 27102, 58721, 117442, 176163, 275537, 352326, 551074, 826611, 1653222, 3581981, 7163962, 10745943, 21491886]

約数ペア:

[(1, 21491886), (2, 10745943), (3, 7163962), (6, 3581981), (13, 1653222), (26, 826611), (39, 551074), (61, 352326), (78, 275537), (122, 176163), (183, 117442), (366, 58721), (793, 27102), (1586, 13551), (2379, 9034), (4517, 4758)]