21417501

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^2\times {\mathrm{3529}}^1$

素因数の和:3573

約数の個数: 24

約数和(自身を含む): 34678720

約数和(自身を除く): 13261219

約数列:

[1, 3, 7, 17, 21, 51, 119, 289, 357, 867, 2023, 3529, 6069, 10587, 24703, 59993, 74109, 179979, 419951, 1019881, 1259853, 3059643, 7139167, 21417501]

約数ペア:

[(1, 21417501), (3, 7139167), (7, 3059643), (17, 1259853), (21, 1019881), (51, 419951), (119, 179979), (289, 74109), (357, 59993), (867, 24703), (2023, 10587), (3529, 6069)]