12217815

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{15971}}^1$

素因数の和:15999

約数の個数: 24

約数和(自身を含む): 22424688

約数和(自身を除く): 10206873

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 85, 153, 255, 765, 15971, 47913, 79855, 143739, 239565, 271507, 718695, 814521, 1357535, 2443563, 4072605, 12217815]

約数ペア:

[(1, 12217815), (3, 4072605), (5, 2443563), (9, 1357535), (15, 814521), (17, 718695), (45, 271507), (51, 239565), (85, 143739), (153, 79855), (255, 47913), (765, 15971)]