21069105

素因数分解:

$3^1\times 5^1\times {\mathrm{101}}^1\times {\mathrm{13907}}^1$

素因数の和:14016

約数の個数: 16

約数和(自身を含む): 34046784

約数和(自身を除く): 12977679

約数列:

[1, 3, 5, 15, 101, 303, 505, 1515, 13907, 41721, 69535, 208605, 1404607, 4213821, 7023035, 21069105]

約数ペア:

[(1, 21069105), (3, 7023035), (5, 4213821), (15, 1404607), (101, 208605), (303, 69535), (505, 41721), (1515, 13907)]