20839756

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{43781}}^1$

素因数の和:43809

約数の個数: 24

約数和(自身を含む): 44132256

約数和(自身を除く): 23292500

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 68, 119, 238, 476, 43781, 87562, 175124, 306467, 612934, 744277, 1225868, 1488554, 2977108, 5209939, 10419878, 20839756]

約数ペア:

[(1, 20839756), (2, 10419878), (4, 5209939), (7, 2977108), (14, 1488554), (17, 1225868), (28, 744277), (34, 612934), (68, 306467), (119, 175124), (238, 87562), (476, 43781)]