20803878

素因数分解:

$2^1\times 3^4\times {\mathrm{53}}^1\times {\mathrm{2423}}^1$

素因数の和:2490

約数の個数: 40

約数和(自身を含む): 47515248

約数和(自身を除く): 26711370

約数列:

[1, 2, 3, 6, 9, 18, 27, 53, 54, 81, 106, 159, 162, 318, 477, 954, 1431, 2423, 2862, 4293, 4846, 7269, 8586, 14538, 21807, 43614, 65421, 128419, 130842, 196263, 256838, 385257, 392526, 770514, 1155771, 2311542, 3467313, 6934626, 10401939, 20803878]

約数ペア:

[(1, 20803878), (2, 10401939), (3, 6934626), (6, 3467313), (9, 2311542), (18, 1155771), (27, 770514), (53, 392526), (54, 385257), (81, 256838), (106, 196263), (159, 130842), (162, 128419), (318, 65421), (477, 43614), (954, 21807), (1431, 14538), (2423, 8586), (2862, 7269), (4293, 4846)]