21906140

素因数分解:

$2^2\times 5^1\times {\mathrm{229}}^1\times {\mathrm{4783}}^1$

素因数の和:5021

約数の個数: 24

約数和(自身を含む): 46213440

約数和(自身を除く): 24307300

約数列:

[1, 2, 4, 5, 10, 20, 229, 458, 916, 1145, 2290, 4580, 4783, 9566, 19132, 23915, 47830, 95660, 1095307, 2190614, 4381228, 5476535, 10953070, 21906140]

約数ペア:

[(1, 21906140), (2, 10953070), (4, 5476535), (5, 4381228), (10, 2190614), (20, 1095307), (229, 95660), (458, 47830), (916, 23915), (1145, 19132), (2290, 9566), (4580, 4783)]