19882225

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{197}}^1\times {\mathrm{367}}^1$

素因数の和:585

約数の個数: 24

約数和(自身を含む): 27105408

約数和(自身を除く): 7223183

約数列:

[1, 5, 11, 25, 55, 197, 275, 367, 985, 1835, 2167, 4037, 4925, 9175, 10835, 20185, 54175, 72299, 100925, 361495, 795289, 1807475, 3976445, 19882225]

約数ペア:

[(1, 19882225), (5, 3976445), (11, 1807475), (25, 795289), (55, 361495), (197, 100925), (275, 72299), (367, 54175), (985, 20185), (1835, 10835), (2167, 9175), (4037, 4925)]