16420815

素因数分解:

$3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{12583}}^1$

素因数の和:12623

約数の個数: 24

約数和(自身を含む): 29446560

約数和(自身を除く): 13025745

約数列:

[1, 3, 5, 9, 15, 29, 45, 87, 145, 261, 435, 1305, 12583, 37749, 62915, 113247, 188745, 364907, 566235, 1094721, 1824535, 3284163, 5473605, 16420815]

約数ペア:

[(1, 16420815), (3, 5473605), (5, 3284163), (9, 1824535), (15, 1094721), (29, 566235), (45, 364907), (87, 188745), (145, 113247), (261, 62915), (435, 37749), (1305, 12583)]