19925615

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{4423}}^1$

素因数の和:4498

約数の個数: 16

約数和(自身を含む): 25800768

約数和(自身を除く): 5875153

約数列:

[1, 5, 17, 53, 85, 265, 901, 4423, 4505, 22115, 75191, 234419, 375955, 1172095, 3985123, 19925615]

約数ペア:

[(1, 19925615), (5, 3985123), (17, 1172095), (53, 375955), (85, 234419), (265, 75191), (901, 22115), (4423, 4505)]