20740538

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{1373}}^1$

素因数の和:1478

約数の個数: 32

約数和(自身を含む): 38779776

約数和(自身を除く): 18039238

約数列:

[1, 2, 7, 13, 14, 26, 83, 91, 166, 182, 581, 1079, 1162, 1373, 2158, 2746, 7553, 9611, 15106, 17849, 19222, 35698, 113959, 124943, 227918, 249886, 797713, 1481467, 1595426, 2962934, 10370269, 20740538]

約数ペア:

[(1, 20740538), (2, 10370269), (7, 2962934), (13, 1595426), (14, 1481467), (26, 797713), (83, 249886), (91, 227918), (166, 124943), (182, 113959), (581, 35698), (1079, 19222), (1162, 17849), (1373, 15106), (2158, 9611), (2746, 7553)]