81299865

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{318823}}^1$

素因数の和:318848

約数の個数: 16

約数和(自身を含む): 137731968

約数和(自身を除く): 56432103

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 318823, 956469, 1594115, 4782345, 5419991, 16259973, 27099955, 81299865]

約数ペア:

[(1, 81299865), (3, 27099955), (5, 16259973), (15, 5419991), (17, 4782345), (51, 1594115), (85, 956469), (255, 318823)]