19691020

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{13487}}^1$

素因数の和:13569

約数の個数: 24

約数和(自身を含む): 41920704

約数和(自身を除く): 22229684

約数列:

[1, 2, 4, 5, 10, 20, 73, 146, 292, 365, 730, 1460, 13487, 26974, 53948, 67435, 134870, 269740, 984551, 1969102, 3938204, 4922755, 9845510, 19691020]

約数ペア:

[(1, 19691020), (2, 9845510), (4, 4922755), (5, 3938204), (10, 1969102), (20, 984551), (73, 269740), (146, 134870), (292, 67435), (365, 53948), (730, 26974), (1460, 13487)]