42180915

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{57389}}^1$

素因数の和:57411

約数の個数: 24

約数和(自身を含む): 78509520

約数和(自身を除く): 36328605

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 147, 245, 735, 57389, 172167, 286945, 401723, 860835, 1205169, 2008615, 2812061, 6025845, 8436183, 14060305, 42180915]

約数ペア:

[(1, 42180915), (3, 14060305), (5, 8436183), (7, 6025845), (15, 2812061), (21, 2008615), (35, 1205169), (49, 860835), (105, 401723), (147, 286945), (245, 172167), (735, 57389)]