19889575

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{883}}^1$

素因数の和:963

約数の個数: 24

約数和(自身を含む): 26636688

約数和(自身を除く): 6747113

約数列:

[1, 5, 17, 25, 53, 85, 265, 425, 883, 901, 1325, 4415, 4505, 15011, 22075, 22525, 46799, 75055, 233995, 375275, 795583, 1169975, 3977915, 19889575]

約数ペア:

[(1, 19889575), (5, 3977915), (17, 1169975), (25, 795583), (53, 375275), (85, 233995), (265, 75055), (425, 46799), (883, 22525), (901, 22075), (1325, 15011), (4415, 4505)]