19782386

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{89}}^1\times {\mathrm{103}}^1$

素因数の和:290

約数の個数: 32

約数和(自身を含む): 33022080

約数和(自身を除く): 13239694

約数列:

[1, 2, 13, 26, 83, 89, 103, 166, 178, 206, 1079, 1157, 1339, 2158, 2314, 2678, 7387, 8549, 9167, 14774, 17098, 18334, 96031, 111137, 119171, 192062, 222274, 238342, 760861, 1521722, 9891193, 19782386]

約数ペア:

[(1, 19782386), (2, 9891193), (13, 1521722), (26, 760861), (83, 238342), (89, 222274), (103, 192062), (166, 119171), (178, 111137), (206, 96031), (1079, 18334), (1157, 17098), (1339, 14774), (2158, 9167), (2314, 8549), (2678, 7387)]