21658788

素因数分解:

$2^2\times 3^2\times {\mathrm{163}}^1\times {\mathrm{3691}}^1$

素因数の和:3864

約数の個数: 36

約数和(自身を含む): 55099408

約数和(自身を除く): 33440620

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 163, 326, 489, 652, 978, 1467, 1956, 2934, 3691, 5868, 7382, 11073, 14764, 22146, 33219, 44292, 66438, 132876, 601633, 1203266, 1804899, 2406532, 3609798, 5414697, 7219596, 10829394, 21658788]

約数ペア:

[(1, 21658788), (2, 10829394), (3, 7219596), (4, 5414697), (6, 3609798), (9, 2406532), (12, 1804899), (18, 1203266), (36, 601633), (163, 132876), (326, 66438), (489, 44292), (652, 33219), (978, 22146), (1467, 14764), (1956, 11073), (2934, 7382), (3691, 5868)]