21418335

素因数分解:

$3^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{4621}}^1$

素因数の和:4735

約数の個数: 24

約数和(自身を含む): 37493664

約数和(自身を除く): 16075329

約数列:

[1, 3, 5, 9, 15, 45, 103, 309, 515, 927, 1545, 4621, 4635, 13863, 23105, 41589, 69315, 207945, 475963, 1427889, 2379815, 4283667, 7139445, 21418335]

約数ペア:

[(1, 21418335), (3, 7139445), (5, 4283667), (9, 2379815), (15, 1427889), (45, 475963), (103, 207945), (309, 69315), (515, 41589), (927, 23105), (1545, 13863), (4621, 4635)]