20211110

素因数分解:

$2^1\times 5^1\times {\mathrm{101}}^1\times {\mathrm{20011}}^1$

素因数の和:20119

約数の個数: 16

約数和(自身を含む): 36742032

約数和(自身を除く): 16530922

約数列:

[1, 2, 5, 10, 101, 202, 505, 1010, 20011, 40022, 100055, 200110, 2021111, 4042222, 10105555, 20211110]

約数ペア:

[(1, 20211110), (2, 10105555), (5, 4042222), (10, 2021111), (101, 200110), (202, 100055), (505, 40022), (1010, 20011)]