9905571

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{409}}^1$

素因数の和:457

約数の個数: 40

約数和(自身を含む): 16668960

約数和(自身を除く): 6763389

約数列:

[1, 3, 9, 13, 23, 27, 39, 69, 81, 117, 207, 299, 351, 409, 621, 897, 1053, 1227, 1863, 2691, 3681, 5317, 8073, 9407, 11043, 15951, 24219, 28221, 33129, 47853, 84663, 122291, 143559, 253989, 366873, 430677, 761967, 1100619, 3301857, 9905571]

約数ペア:

[(1, 9905571), (3, 3301857), (9, 1100619), (13, 761967), (23, 430677), (27, 366873), (39, 253989), (69, 143559), (81, 122291), (117, 84663), (207, 47853), (299, 33129), (351, 28221), (409, 24219), (621, 15951), (897, 11043), (1053, 9407), (1227, 8073), (1863, 5317), (2691, 3681)]