1331569281

素因数分解:

$3^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{157}}^1\times {\mathrm{3083}}^1$

素因数の和:3381

約数の個数: 32

約数和(自身を含む): 2058236928

約数和(自身を除く): 726667647

約数列:

[1, 3, 7, 21, 131, 157, 393, 471, 917, 1099, 2751, 3083, 3297, 9249, 20567, 21581, 61701, 64743, 143969, 403873, 431907, 484031, 1211619, 1452093, 2827111, 3388217, 8481333, 10164651, 63408061, 190224183, 443856427, 1331569281]

約数ペア:

[(1, 1331569281), (3, 443856427), (7, 190224183), (21, 63408061), (131, 10164651), (157, 8481333), (393, 3388217), (471, 2827111), (917, 1452093), (1099, 1211619), (2751, 484031), (3083, 431907), (3297, 403873), (9249, 143969), (20567, 64743), (21581, 61701)]