21144190

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{72911}}^1$

素因数の和:72947

約数の個数: 16

約数和(自身を含む): 39372480

約数和(自身を除く): 18228290

約数列:

[1, 2, 5, 10, 29, 58, 145, 290, 72911, 145822, 364555, 729110, 2114419, 4228838, 10572095, 21144190]

約数ペア:

[(1, 21144190), (2, 10572095), (5, 4228838), (10, 2114419), (29, 729110), (58, 364555), (145, 145822), (290, 72911)]