18834215

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{5153}}^1$

素因数の和:5218

約数の個数: 16

約数和(自身を含む): 24491808

約数和(自身を除く): 5657593

約数列:

[1, 5, 17, 43, 85, 215, 731, 3655, 5153, 25765, 87601, 221579, 438005, 1107895, 3766843, 18834215]

約数ペア:

[(1, 18834215), (5, 3766843), (17, 1107895), (43, 438005), (85, 221579), (215, 87601), (731, 25765), (3655, 5153)]