20998104

素因数分解:

$2^3\times 3^1\times {\mathrm{43}}^1\times {\mathrm{20347}}^1$

素因数の和:20399

約数の個数: 32

約数和(自身を含む): 53718720

約数和(自身を除く): 32720616

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 43, 86, 129, 172, 258, 344, 516, 1032, 20347, 40694, 61041, 81388, 122082, 162776, 244164, 488328, 874921, 1749842, 2624763, 3499684, 5249526, 6999368, 10499052, 20998104]

約数ペア:

[(1, 20998104), (2, 10499052), (3, 6999368), (4, 5249526), (6, 3499684), (8, 2624763), (12, 1749842), (24, 874921), (43, 488328), (86, 244164), (129, 162776), (172, 122082), (258, 81388), (344, 61041), (516, 40694), (1032, 20347)]