18979345

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{49297}}^1$

素因数の和:49320

約数の個数: 16

約数和(自身を含む): 28395648

約数和(自身を除く): 9416303

約数列:

[1, 5, 7, 11, 35, 55, 77, 385, 49297, 246485, 345079, 542267, 1725395, 2711335, 3795869, 18979345]

約数ペア:

[(1, 18979345), (5, 3795869), (7, 2711335), (11, 1725395), (35, 542267), (55, 345079), (77, 246485), (385, 49297)]