21742575

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{17053}}^1$

素因数の和:17083

約数の個数: 24

約数和(自身を含む): 38064528

約数和(自身を除く): 16321953

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 85, 255, 425, 1275, 17053, 51159, 85265, 255795, 289901, 426325, 869703, 1278975, 1449505, 4348515, 7247525, 21742575]

約数ペア:

[(1, 21742575), (3, 7247525), (5, 4348515), (15, 1449505), (17, 1278975), (25, 869703), (51, 426325), (75, 289901), (85, 255795), (255, 85265), (425, 51159), (1275, 17053)]