220893309

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^2\times {\mathrm{20747}}^1$

素因数の和:20786

約数の個数: 36

約数和(自身を含む): 394875936

約数和(自身を除く): 173982627

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 169, 273, 507, 819, 1183, 1521, 3549, 10647, 20747, 62241, 145229, 186723, 269711, 435687, 809133, 1307061, 1887977, 2427399, 3506243, 5663931, 10518729, 16991793, 24543701, 31556187, 73631103, 220893309]

約数ペア:

[(1, 220893309), (3, 73631103), (7, 31556187), (9, 24543701), (13, 16991793), (21, 10518729), (39, 5663931), (63, 3506243), (91, 2427399), (117, 1887977), (169, 1307061), (273, 809133), (507, 435687), (819, 269711), (1183, 186723), (1521, 145229), (3549, 62241), (10647, 20747)]