21495830

素因数分解:

$2^1\times 5^1\times {\mathrm{101}}^1\times {\mathrm{21283}}^1$

素因数の和:21391

約数の個数: 16

約数和(自身を含む): 39077424

約数和(自身を除く): 17581594

約数列:

[1, 2, 5, 10, 101, 202, 505, 1010, 21283, 42566, 106415, 212830, 2149583, 4299166, 10747915, 21495830]

約数ペア:

[(1, 21495830), (2, 10747915), (5, 4299166), (10, 2149583), (101, 212830), (202, 106415), (505, 42566), (1010, 21283)]