19999111

素因数分解:

${\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{101}}^1\times {\mathrm{383}}^1$

素因数の和:542

約数の個数: 16

約数和(自身を含む): 22560768

約数和(自身を除く): 2561657

約数列:

[1, 11, 47, 101, 383, 517, 1111, 4213, 4747, 18001, 38683, 52217, 198011, 425513, 1818101, 19999111]

約数ペア:

[(1, 19999111), (11, 1818101), (47, 425513), (101, 198011), (383, 52217), (517, 38683), (1111, 18001), (4213, 4747)]