21449985

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{163}}^1\times {\mathrm{283}}^1$

素因数の和:485

約数の個数: 32

約数和(自身を含む): 35770368

約数和(自身を除く): 14320383

約数列:

[1, 3, 5, 15, 31, 93, 155, 163, 283, 465, 489, 815, 849, 1415, 2445, 4245, 5053, 8773, 15159, 25265, 26319, 43865, 46129, 75795, 131595, 138387, 230645, 691935, 1429999, 4289997, 7149995, 21449985]

約数ペア:

[(1, 21449985), (3, 7149995), (5, 4289997), (15, 1429999), (31, 691935), (93, 230645), (155, 138387), (163, 131595), (283, 75795), (465, 46129), (489, 43865), (815, 26319), (849, 25265), (1415, 15159), (2445, 8773), (4245, 5053)]