217409565

素因数分解:

$3^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{110641}}^1$

素因数の和:110780

約数の個数: 16

約数和(自身を含む): 350513856

約数和(自身を除く): 133104291

約数列:

[1, 3, 5, 15, 131, 393, 655, 1965, 110641, 331923, 553205, 1659615, 14493971, 43481913, 72469855, 217409565]

約数ペア:

[(1, 217409565), (3, 72469855), (5, 43481913), (15, 14493971), (131, 1659615), (393, 553205), (655, 331923), (1965, 110641)]