21167993090

素因数分解:

$2^1\times 5^1\times {\mathrm{101}}^2\times {\mathrm{207509}}^1$

素因数の和:207718

約数の個数: 24

約数和(自身を含む): 38483559540

約数和(自身を除く): 17315566450

約数列:

[1, 2, 5, 10, 101, 202, 505, 1010, 10201, 20402, 51005, 102010, 207509, 415018, 1037545, 2075090, 20958409, 41916818, 104792045, 209584090, 2116799309, 4233598618, 10583996545, 21167993090]

約数ペア:

[(1, 21167993090), (2, 10583996545), (5, 4233598618), (10, 2116799309), (101, 209584090), (202, 104792045), (505, 41916818), (1010, 20958409), (10201, 2075090), (20402, 1037545), (51005, 415018), (102010, 207509)]