18984325

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{2351}}^1$

素因数の和:2397

約数の個数: 24

約数和(自身を含む): 26248320

約数和(自身を除く): 7263995

約数列:

[1, 5, 17, 19, 25, 85, 95, 323, 425, 475, 1615, 2351, 8075, 11755, 39967, 44669, 58775, 199835, 223345, 759373, 999175, 1116725, 3796865, 18984325]

約数ペア:

[(1, 18984325), (5, 3796865), (17, 1116725), (19, 999175), (25, 759373), (85, 223345), (95, 199835), (323, 58775), (425, 44669), (475, 39967), (1615, 11755), (2351, 8075)]