12891256

素因数分解:

$2^3\times 7^1\times {\mathrm{211}}^1\times {\mathrm{1091}}^1$

素因数の和:1315

約数の個数: 32

約数和(自身を含む): 27780480

約数和(自身を除く): 14889224

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 211, 422, 844, 1091, 1477, 1688, 2182, 2954, 4364, 5908, 7637, 8728, 11816, 15274, 30548, 61096, 230201, 460402, 920804, 1611407, 1841608, 3222814, 6445628, 12891256]

約数ペア:

[(1, 12891256), (2, 6445628), (4, 3222814), (7, 1841608), (8, 1611407), (14, 920804), (28, 460402), (56, 230201), (211, 61096), (422, 30548), (844, 15274), (1091, 11816), (1477, 8728), (1688, 7637), (2182, 5908), (2954, 4364)]