19281845

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{263}}^1$

素因数の和:353

約数の個数: 32

約数和(自身を含む): 26763264

約数和(自身を除く): 7481419

約数列:

[1, 5, 11, 31, 43, 55, 155, 215, 263, 341, 473, 1315, 1333, 1705, 2365, 2893, 6665, 8153, 11309, 14465, 14663, 40765, 56545, 73315, 89683, 124399, 350579, 448415, 621995, 1752895, 3856369, 19281845]

約数ペア:

[(1, 19281845), (5, 3856369), (11, 1752895), (31, 621995), (43, 448415), (55, 350579), (155, 124399), (215, 89683), (263, 73315), (341, 56545), (473, 40765), (1315, 14663), (1333, 14465), (1705, 11309), (2365, 8153), (2893, 6665)]