21904888

素因数分解:

$2^3\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{1721}}^1$

素因数の和:1807

約数の個数: 32

約数和(自身を含む): 43187760

約数和(自身を除く): 21282872

約数列:

[1, 2, 4, 8, 37, 43, 74, 86, 148, 172, 296, 344, 1591, 1721, 3182, 3442, 6364, 6884, 12728, 13768, 63677, 74003, 127354, 148006, 254708, 296012, 509416, 592024, 2738111, 5476222, 10952444, 21904888]

約数ペア:

[(1, 21904888), (2, 10952444), (4, 5476222), (8, 2738111), (37, 592024), (43, 509416), (74, 296012), (86, 254708), (148, 148006), (172, 127354), (296, 74003), (344, 63677), (1591, 13768), (1721, 12728), (3182, 6884), (3442, 6364)]