28160041

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{167}}^1$

素因数の和:313

約数の個数: 32

約数和(自身を含む): 37255680

約数和(自身を除く): 9095639

約数列:

[1, 7, 13, 17, 91, 109, 119, 167, 221, 763, 1169, 1417, 1547, 1853, 2171, 2839, 9919, 12971, 15197, 18203, 19873, 24089, 36907, 127421, 168623, 236639, 258349, 309451, 1656473, 2166157, 4022863, 28160041]

約数ペア:

[(1, 28160041), (7, 4022863), (13, 2166157), (17, 1656473), (91, 309451), (109, 258349), (119, 236639), (167, 168623), (221, 127421), (763, 36907), (1169, 24089), (1417, 19873), (1547, 18203), (1853, 15197), (2171, 12971), (2839, 9919)]