20463723

素因数分解:

$3^2\times 7^4\times {\mathrm{947}}^1$

素因数の和:981

約数の個数: 30

約数和(自身を含む): 34519524

約数和(自身を除く): 14055801

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 343, 441, 947, 1029, 2401, 2841, 3087, 6629, 7203, 8523, 19887, 21609, 46403, 59661, 139209, 324821, 417627, 974463, 2273747, 2923389, 6821241, 20463723]

約数ペア:

[(1, 20463723), (3, 6821241), (7, 2923389), (9, 2273747), (21, 974463), (49, 417627), (63, 324821), (147, 139209), (343, 59661), (441, 46403), (947, 21609), (1029, 19887), (2401, 8523), (2841, 7203), (3087, 6629)]