19101901

素因数分解:

$7^1\times {\mathrm{13}}^2\times {\mathrm{67}}^1\times {\mathrm{241}}^1$

素因数の和:341

約数の個数: 24

約数和(自身を含む): 24091584

約数和(自身を除く): 4989683

約数列:

[1, 7, 13, 67, 91, 169, 241, 469, 871, 1183, 1687, 3133, 6097, 11323, 16147, 21931, 40729, 79261, 113029, 209911, 285103, 1469377, 2728843, 19101901]

約数ペア:

[(1, 19101901), (7, 2728843), (13, 1469377), (67, 285103), (91, 209911), (169, 113029), (241, 79261), (469, 40729), (871, 21931), (1183, 16147), (1687, 11323), (3133, 6097)]