20571105

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{80671}}^1$

素因数の和:80696

約数の個数: 16

約数和(自身を含む): 34850304

約数和(自身を除く): 14279199

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 80671, 242013, 403355, 1210065, 1371407, 4114221, 6857035, 20571105]

約数ペア:

[(1, 20571105), (3, 6857035), (5, 4114221), (15, 1371407), (17, 1210065), (51, 403355), (85, 242013), (255, 80671)]