18271485

素因数分解:

$3^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{163}}^1$

素因数の和:274

約数の個数: 48

約数和(自身を含む): 33156864

約数和(自身を除く): 14885379

約数列:

[1, 3, 5, 9, 15, 45, 47, 53, 141, 159, 163, 235, 265, 423, 477, 489, 705, 795, 815, 1467, 2115, 2385, 2445, 2491, 7335, 7473, 7661, 8639, 12455, 22419, 22983, 25917, 37365, 38305, 43195, 68949, 77751, 112095, 114915, 129585, 344745, 388755, 406033, 1218099, 2030165, 3654297, 6090495, 18271485]

約数ペア:

[(1, 18271485), (3, 6090495), (5, 3654297), (9, 2030165), (15, 1218099), (45, 406033), (47, 388755), (53, 344745), (141, 129585), (159, 114915), (163, 112095), (235, 77751), (265, 68949), (423, 43195), (477, 38305), (489, 37365), (705, 25917), (795, 22983), (815, 22419), (1467, 12455), (2115, 8639), (2385, 7661), (2445, 7473), (2491, 7335)]