18903990

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{90019}}^1$

素因数の和:90036

約数の個数: 32

約数和(自身を含む): 51851520

約数和(自身を除く): 32947530

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 90019, 180038, 270057, 450095, 540114, 630133, 900190, 1260266, 1350285, 1890399, 2700570, 3150665, 3780798, 6301330, 9451995, 18903990]

約数ペア:

[(1, 18903990), (2, 9451995), (3, 6301330), (5, 3780798), (6, 3150665), (7, 2700570), (10, 1890399), (14, 1350285), (15, 1260266), (21, 900190), (30, 630133), (35, 540114), (42, 450095), (70, 270057), (105, 180038), (210, 90019)]