18389155

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{3229}}^1$

素因数の和:3318

約数の個数: 16

約数和(自身を含む): 23721120

約数和(自身を除く): 5331965

約数列:

[1, 5, 17, 67, 85, 335, 1139, 3229, 5695, 16145, 54893, 216343, 274465, 1081715, 3677831, 18389155]

約数ペア:

[(1, 18389155), (5, 3677831), (17, 1081715), (67, 274465), (85, 216343), (335, 54893), (1139, 16145), (3229, 5695)]