209520819

素因数分解:

$3^2\times {\mathrm{53}}^1\times {\mathrm{173}}^1\times {\mathrm{2539}}^1$

素因数の和:2771

約数の個数: 24

約数和(自身を含む): 310255920

約数和(自身を除く): 100735101

約数列:

[1, 3, 9, 53, 159, 173, 477, 519, 1557, 2539, 7617, 9169, 22851, 27507, 82521, 134567, 403701, 439247, 1211103, 1317741, 3953223, 23280091, 69840273, 209520819]

約数ペア:

[(1, 209520819), (3, 69840273), (9, 23280091), (53, 3953223), (159, 1317741), (173, 1211103), (477, 439247), (519, 403701), (1557, 134567), (2539, 82521), (7617, 27507), (9169, 22851)]