17220945

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{401}}^1\times {\mathrm{409}}^1$

素因数の和:825

約数の個数: 32

約数和(自身を含む): 31645440

約数和(自身を除く): 14424495

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 401, 409, 1203, 1227, 2005, 2045, 2807, 2863, 6015, 6135, 8421, 8589, 14035, 14315, 42105, 42945, 164009, 492027, 820045, 1148063, 2460135, 3444189, 5740315, 17220945]

約数ペア:

[(1, 17220945), (3, 5740315), (5, 3444189), (7, 2460135), (15, 1148063), (21, 820045), (35, 492027), (105, 164009), (401, 42945), (409, 42105), (1203, 14315), (1227, 14035), (2005, 8589), (2045, 8421), (2807, 6135), (2863, 6015)]