21679815

素因数分解:

$3^1\times 5^1\times {\mathrm{163}}^1\times {\mathrm{8867}}^1$

素因数の和:9038

約数の個数: 16

約数和(自身を含む): 34904448

約数和(自身を除く): 13224633

約数列:

[1, 3, 5, 15, 163, 489, 815, 2445, 8867, 26601, 44335, 133005, 1445321, 4335963, 7226605, 21679815]

約数ペア:

[(1, 21679815), (3, 7226605), (5, 4335963), (15, 1445321), (163, 133005), (489, 44335), (815, 26601), (2445, 8867)]