21000974415

素因数分解:

$3^1\times 5^1\times {\mathrm{7789}}^1\times {\mathrm{179749}}^1$

素因数の和:187546

約数の個数: 16

約数和(自身を含む): 33606060000

約数和(自身を除く): 12605085585

約数列:

[1, 3, 5, 15, 7789, 23367, 38945, 116835, 179749, 539247, 898745, 2696235, 1400064961, 4200194883, 7000324805, 21000974415]

約数ペア:

[(1, 21000974415), (3, 7000324805), (5, 4200194883), (15, 1400064961), (7789, 2696235), (23367, 898745), (38945, 539247), (116835, 179749)]