31005261

素因数分解:

$3^4\times 7^1\times {\mathrm{149}}^1\times {\mathrm{367}}^1$

素因数の和:535

約数の個数: 40

約数和(自身を含む): 53433600

約数和(自身を除く): 22428339

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 149, 189, 367, 447, 567, 1043, 1101, 1341, 2569, 3129, 3303, 4023, 7707, 9387, 9909, 12069, 23121, 28161, 29727, 54683, 69363, 84483, 164049, 208089, 382781, 492147, 1148343, 1476441, 3445029, 4429323, 10335087, 31005261]

約数ペア:

[(1, 31005261), (3, 10335087), (7, 4429323), (9, 3445029), (21, 1476441), (27, 1148343), (63, 492147), (81, 382781), (149, 208089), (189, 164049), (367, 84483), (447, 69363), (567, 54683), (1043, 29727), (1101, 28161), (1341, 23121), (2569, 12069), (3129, 9909), (3303, 9387), (4023, 7707)]