21245830

素因数分解:

$2^1\times 5^1\times {\mathrm{127}}^1\times {\mathrm{16729}}^1$

素因数の和:16863

約数の個数: 16

約数和(自身を含む): 38545920

約数和(自身を除く): 17300090

約数列:

[1, 2, 5, 10, 127, 254, 635, 1270, 16729, 33458, 83645, 167290, 2124583, 4249166, 10622915, 21245830]

約数ペア:

[(1, 21245830), (2, 10622915), (5, 4249166), (10, 2124583), (127, 167290), (254, 83645), (635, 33458), (1270, 16729)]