21660890

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{2711}}^1$

素因数の和:2782

約数の個数: 32

約数和(自身を含む): 42177024

約数和(自身を除く): 20516134

約数列:

[1, 2, 5, 10, 17, 34, 47, 85, 94, 170, 235, 470, 799, 1598, 2711, 3995, 5422, 7990, 13555, 27110, 46087, 92174, 127417, 230435, 254834, 460870, 637085, 1274170, 2166089, 4332178, 10830445, 21660890]

約数ペア:

[(1, 21660890), (2, 10830445), (5, 4332178), (10, 2166089), (17, 1274170), (34, 637085), (47, 460870), (85, 254834), (94, 230435), (170, 127417), (235, 92174), (470, 46087), (799, 27110), (1598, 13555), (2711, 7990), (3995, 5422)]