18990507

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{3461}}^1$

素因数の和:3554

約数の個数: 16

約数和(自身を含む): 26588160

約数和(自身を除く): 7597653

約数列:

[1, 3, 31, 59, 93, 177, 1829, 3461, 5487, 10383, 107291, 204199, 321873, 612597, 6330169, 18990507]

約数ペア:

[(1, 18990507), (3, 6330169), (31, 612597), (59, 321873), (93, 204199), (177, 107291), (1829, 10383), (3461, 5487)]