21235845

素因数分解:

$3^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{15907}}^1$

素因数の和:16004

約数の個数: 16

約数和(自身を含む): 34361280

約数和(自身を除く): 13125435

約数列:

[1, 3, 5, 15, 89, 267, 445, 1335, 15907, 47721, 79535, 238605, 1415723, 4247169, 7078615, 21235845]

約数ペア:

[(1, 21235845), (3, 7078615), (5, 4247169), (15, 1415723), (89, 238605), (267, 79535), (445, 47721), (1335, 15907)]