20168668

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{4673}}^1$

素因数の和:4773

約数の個数: 24

約数和(自身を含む): 38476368

約数和(自身を除く): 18307700

約数列:

[1, 2, 4, 13, 26, 52, 83, 166, 332, 1079, 2158, 4316, 4673, 9346, 18692, 60749, 121498, 242996, 387859, 775718, 1551436, 5042167, 10084334, 20168668]

約数ペア:

[(1, 20168668), (2, 10084334), (4, 5042167), (13, 1551436), (26, 775718), (52, 387859), (83, 242996), (166, 121498), (332, 60749), (1079, 18692), (2158, 9346), (4316, 4673)]