21419415

素因数分解:

$3^2\times 5^1\times {\mathrm{401}}^1\times {\mathrm{1187}}^1$

素因数の和:1599

約数の個数: 24

約数和(自身を含む): 37250928

約数和(自身を除く): 15831513

約数列:

[1, 3, 5, 9, 15, 45, 401, 1187, 1203, 2005, 3561, 3609, 5935, 6015, 10683, 17805, 18045, 53415, 475987, 1427961, 2379935, 4283883, 7139805, 21419415]

約数ペア:

[(1, 21419415), (3, 7139805), (5, 4283883), (9, 2379935), (15, 1427961), (45, 475987), (401, 53415), (1187, 18045), (1203, 17805), (2005, 10683), (3561, 6015), (3609, 5935)]