20540478

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{479}}^1\times {\mathrm{1021}}^1$

素因数の和:1512

約数の個数: 32

約数和(自身を含む): 47093760

約数和(自身を除く): 26553282

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 479, 958, 1021, 1437, 2042, 2874, 3063, 3353, 6126, 6706, 7147, 10059, 14294, 20118, 21441, 42882, 489059, 978118, 1467177, 2934354, 3423413, 6846826, 10270239, 20540478]

約数ペア:

[(1, 20540478), (2, 10270239), (3, 6846826), (6, 3423413), (7, 2934354), (14, 1467177), (21, 978118), (42, 489059), (479, 42882), (958, 21441), (1021, 20118), (1437, 14294), (2042, 10059), (2874, 7147), (3063, 6706), (3353, 6126)]