21253755

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{45707}}^1$

素因数の和:45746

約数の個数: 16

約数和(自身を含む): 35103744

約数和(自身を除く): 13849989

約数列:

[1, 3, 5, 15, 31, 93, 155, 465, 45707, 137121, 228535, 685605, 1416917, 4250751, 7084585, 21253755]

約数ペア:

[(1, 21253755), (3, 7084585), (5, 4250751), (15, 1416917), (31, 685605), (93, 228535), (155, 137121), (465, 45707)]