21992043

素因数分解:

$3^1\times {\mathrm{101}}^1\times {\mathrm{181}}^1\times {\mathrm{401}}^1$

素因数の和:686

約数の個数: 16

約数和(自身を含む): 29850912

約数和(自身を除く): 7858869

約数列:

[1, 3, 101, 181, 303, 401, 543, 1203, 18281, 40501, 54843, 72581, 121503, 217743, 7330681, 21992043]

約数ペア:

[(1, 21992043), (3, 7330681), (101, 217743), (181, 121503), (303, 72581), (401, 54843), (543, 40501), (1203, 18281)]