20790172

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{4817}}^1$

素因数の和:4917

約数の個数: 24

約数和(自身を含む): 39661776

約数和(自身を除く): 18871604

約数列:

[1, 2, 4, 13, 26, 52, 83, 166, 332, 1079, 2158, 4316, 4817, 9634, 19268, 62621, 125242, 250484, 399811, 799622, 1599244, 5197543, 10395086, 20790172]

約数ペア:

[(1, 20790172), (2, 10395086), (4, 5197543), (13, 1599244), (26, 799622), (52, 399811), (83, 250484), (166, 125242), (332, 62621), (1079, 19268), (2158, 9634), (4316, 4817)]