20745368

素因数分解:

$2^3\times 7^1\times {\mathrm{61}}^1\times {\mathrm{6073}}^1$

素因数の和:6147

約数の個数: 32

約数和(自身を含む): 45190560

約数和(自身を除く): 24445192

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 61, 122, 244, 427, 488, 854, 1708, 3416, 6073, 12146, 24292, 42511, 48584, 85022, 170044, 340088, 370453, 740906, 1481812, 2593171, 2963624, 5186342, 10372684, 20745368]

約数ペア:

[(1, 20745368), (2, 10372684), (4, 5186342), (7, 2963624), (8, 2593171), (14, 1481812), (28, 740906), (56, 370453), (61, 340088), (122, 170044), (244, 85022), (427, 48584), (488, 42511), (854, 24292), (1708, 12146), (3416, 6073)]