19938646

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{1543}}^1$

素因数の和:1636

約数の個数: 32

約数和(自身を含む): 37352448

約数和(自身を除く): 17413802

約数列:

[1, 2, 7, 13, 14, 26, 71, 91, 142, 182, 497, 923, 994, 1543, 1846, 3086, 6461, 10801, 12922, 20059, 21602, 40118, 109553, 140413, 219106, 280826, 766871, 1424189, 1533742, 2848378, 9969323, 19938646]

約数ペア:

[(1, 19938646), (2, 9969323), (7, 2848378), (13, 1533742), (14, 1424189), (26, 766871), (71, 280826), (91, 219106), (142, 140413), (182, 109553), (497, 40118), (923, 21602), (994, 20059), (1543, 12922), (1846, 10801), (3086, 6461)]