31178277

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{1021}}^1$

素因数の和:1075

約数の個数: 40

約数和(自身を含む): 51938040

約数和(自身を除く): 20759763

約数列:

[1, 3, 9, 13, 27, 29, 39, 81, 87, 117, 261, 351, 377, 783, 1021, 1053, 1131, 2349, 3063, 3393, 9189, 10179, 13273, 27567, 29609, 30537, 39819, 82701, 88827, 119457, 266481, 358371, 384917, 799443, 1075113, 1154751, 2398329, 3464253, 10392759, 31178277]

約数ペア:

[(1, 31178277), (3, 10392759), (9, 3464253), (13, 2398329), (27, 1154751), (29, 1075113), (39, 799443), (81, 384917), (87, 358371), (117, 266481), (261, 119457), (351, 88827), (377, 82701), (783, 39819), (1021, 30537), (1053, 29609), (1131, 27567), (2349, 13273), (3063, 10179), (3393, 9189)]