20172917187

素因数分解:

$3^3\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{327839}}^1$

素因数の和:327944

約数の個数: 32

約数和(自身を含む): 31157913600

約数和(自身を除く): 10984996413

約数列:

[1, 3, 9, 27, 43, 53, 129, 159, 387, 477, 1161, 1431, 2279, 6837, 20511, 61533, 327839, 983517, 2950551, 8851653, 14097077, 17375467, 42291231, 52126401, 126873693, 156379203, 380621079, 469137609, 747145081, 2241435243, 6724305729, 20172917187]

約数ペア:

[(1, 20172917187), (3, 6724305729), (9, 2241435243), (27, 747145081), (43, 469137609), (53, 380621079), (129, 156379203), (159, 126873693), (387, 52126401), (477, 42291231), (1161, 17375467), (1431, 14097077), (2279, 8851653), (6837, 2950551), (20511, 983517), (61533, 327839)]