221918210

素因数分解:

$2^1\times 5^1\times {\mathrm{101}}^1\times {\mathrm{219721}}^1$

素因数の和:219829

約数の個数: 16

約数和(自身を含む): 403409592

約数和(自身を除く): 181491382

約数列:

[1, 2, 5, 10, 101, 202, 505, 1010, 219721, 439442, 1098605, 2197210, 22191821, 44383642, 110959105, 221918210]

約数ペア:

[(1, 221918210), (2, 110959105), (5, 44383642), (10, 22191821), (101, 2197210), (202, 1098605), (505, 439442), (1010, 219721)]