21882055

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{7829}}^1$

素因数の和:7890

約数の個数: 16

約数和(自身を含む): 28939680

約数和(自身を除く): 7057625

約数列:

[1, 5, 13, 43, 65, 215, 559, 2795, 7829, 39145, 101777, 336647, 508885, 1683235, 4376411, 21882055]

約数ペア:

[(1, 21882055), (5, 4376411), (13, 1683235), (43, 508885), (65, 336647), (215, 101777), (559, 39145), (2795, 7829)]