21826925

素因数分解:

$5^2\times {\mathrm{67}}^1\times {\mathrm{83}}^1\times {\mathrm{157}}^1$

素因数の和:317

約数の個数: 24

約数和(自身を含む): 27977376

約数和(自身を除く): 6150451

約数列:

[1, 5, 25, 67, 83, 157, 335, 415, 785, 1675, 2075, 3925, 5561, 10519, 13031, 27805, 52595, 65155, 139025, 262975, 325775, 873077, 4365385, 21826925]

約数ペア:

[(1, 21826925), (5, 4365385), (25, 873077), (67, 325775), (83, 262975), (157, 139025), (335, 65155), (415, 52595), (785, 27805), (1675, 13031), (2075, 10519), (3925, 5561)]