21274215

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{45751}}^1$

素因数の和:45790

約数の個数: 16

約数和(自身を含む): 35137536

約数和(自身を除く): 13863321

約数列:

[1, 3, 5, 15, 31, 93, 155, 465, 45751, 137253, 228755, 686265, 1418281, 4254843, 7091405, 21274215]

約数ペア:

[(1, 21274215), (3, 7091405), (5, 4254843), (15, 1418281), (31, 686265), (93, 228755), (155, 137253), (465, 45751)]