20399624

素因数分解:

$2^3\times 7^1\times {\mathrm{67}}^1\times {\mathrm{5437}}^1$

素因数の和:5517

約数の個数: 32

約数和(自身を含む): 44374080

約数和(自身を除く): 23974456

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 67, 134, 268, 469, 536, 938, 1876, 3752, 5437, 10874, 21748, 38059, 43496, 76118, 152236, 304472, 364279, 728558, 1457116, 2549953, 2914232, 5099906, 10199812, 20399624]

約数ペア:

[(1, 20399624), (2, 10199812), (4, 5099906), (7, 2914232), (8, 2549953), (14, 1457116), (28, 728558), (56, 364279), (67, 304472), (134, 152236), (268, 76118), (469, 43496), (536, 38059), (938, 21748), (1876, 10874), (3752, 5437)]