21092620

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{14447}}^1$

素因数の和:14529

約数の個数: 24

約数和(自身を含む): 44904384

約数和(自身を除く): 23811764

約数列:

[1, 2, 4, 5, 10, 20, 73, 146, 292, 365, 730, 1460, 14447, 28894, 57788, 72235, 144470, 288940, 1054631, 2109262, 4218524, 5273155, 10546310, 21092620]

約数ペア:

[(1, 21092620), (2, 10546310), (4, 5273155), (5, 4218524), (10, 2109262), (20, 1054631), (73, 288940), (146, 144470), (292, 72235), (365, 57788), (730, 28894), (1460, 14447)]