210017871

素因数分解:

$3^2\times 7^4\times {\mathrm{9719}}^1$

素因数の和:9753

約数の個数: 30

約数和(自身を含む): 353934360

約数和(自身を除く): 143916489

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 343, 441, 1029, 2401, 3087, 7203, 9719, 21609, 29157, 68033, 87471, 204099, 476231, 612297, 1428693, 3333617, 4286079, 10000851, 23335319, 30002553, 70005957, 210017871]

約数ペア:

[(1, 210017871), (3, 70005957), (7, 30002553), (9, 23335319), (21, 10000851), (49, 4286079), (63, 3333617), (147, 1428693), (343, 612297), (441, 476231), (1029, 204099), (2401, 87471), (3087, 68033), (7203, 29157), (9719, 21609)]