31493917

素因数分解:

$7^4\times {\mathrm{13}}^1\times {\mathrm{1009}}^1$

素因数の和:1050

約数の個数: 20

約数和(自身を含む): 39606140

約数和(自身を除く): 8112223

約数列:

[1, 7, 13, 49, 91, 343, 637, 1009, 2401, 4459, 7063, 13117, 31213, 49441, 91819, 346087, 642733, 2422609, 4499131, 31493917]

約数ペア:

[(1, 31493917), (7, 4499131), (13, 2422609), (49, 642733), (91, 346087), (343, 91819), (637, 49441), (1009, 31213), (2401, 13117), (4459, 7063)]