20348181

素因数分解:

$3^2\times 7^2\times {\mathrm{46141}}^1$

素因数の和:46161

約数の個数: 18

約数和(自身を含む): 34191222

約数和(自身を除く): 13843041

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 46141, 138423, 322987, 415269, 968961, 2260909, 2906883, 6782727, 20348181]

約数ペア:

[(1, 20348181), (3, 6782727), (7, 2906883), (9, 2260909), (21, 968961), (49, 415269), (63, 322987), (147, 138423), (441, 46141)]