18731145

素因数分解:

$3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{163}}^2$

素因数の和:381

約数の個数: 24

約数和(自身を含む): 30796416

約数和(自身を除く): 12065271

約数列:

[1, 3, 5, 15, 47, 141, 163, 235, 489, 705, 815, 2445, 7661, 22983, 26569, 38305, 79707, 114915, 132845, 398535, 1248743, 3746229, 6243715, 18731145]

約数ペア:

[(1, 18731145), (3, 6243715), (5, 3746229), (15, 1248743), (47, 398535), (141, 132845), (163, 114915), (235, 79707), (489, 38305), (705, 26569), (815, 22983), (2445, 7661)]