21277670

素因数分解:

$2^1\times 5^1\times {\mathrm{101}}^1\times {\mathrm{21067}}^1$

素因数の和:21175

約数の個数: 16

約数和(自身を含む): 38680848

約数和(自身を除く): 17403178

約数列:

[1, 2, 5, 10, 101, 202, 505, 1010, 21067, 42134, 105335, 210670, 2127767, 4255534, 10638835, 21277670]

約数ペア:

[(1, 21277670), (2, 10638835), (5, 4255534), (10, 2127767), (101, 210670), (202, 105335), (505, 42134), (1010, 21067)]