208692015

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{1987543}}^1$

素因数の和:1987558

約数の個数: 16

約数和(自身を含む): 381608448

約数和(自身を除く): 172916433

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 1987543, 5962629, 9937715, 13912801, 29813145, 41738403, 69564005, 208692015]

約数ペア:

[(1, 208692015), (3, 69564005), (5, 41738403), (7, 29813145), (15, 13912801), (21, 9937715), (35, 5962629), (105, 1987543)]