18685295

素因数分解:

$5^1\times {\mathrm{17}}^2\times {\mathrm{67}}^1\times {\mathrm{193}}^1$

素因数の和:299

約数の個数: 24

約数和(自身を含む): 24299664

約数和(自身を除く): 5614369

約数列:

[1, 5, 17, 67, 85, 193, 289, 335, 965, 1139, 1445, 3281, 5695, 12931, 16405, 19363, 55777, 64655, 96815, 219827, 278885, 1099135, 3737059, 18685295]

約数ペア:

[(1, 18685295), (5, 3737059), (17, 1099135), (67, 278885), (85, 219827), (193, 96815), (289, 64655), (335, 55777), (965, 19363), (1139, 16405), (1445, 12931), (3281, 5695)]