20649747

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{181}}^1\times {\mathrm{2237}}^1$

素因数の和:2438

約数の個数: 16

約数和(自身を含む): 29326752

約数和(自身を除く): 8677005

約数列:

[1, 3, 17, 51, 181, 543, 2237, 3077, 6711, 9231, 38029, 114087, 404897, 1214691, 6883249, 20649747]

約数ペア:

[(1, 20649747), (3, 6883249), (17, 1214691), (51, 404897), (181, 114087), (543, 38029), (2237, 9231), (3077, 6711)]