21920344

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{1811}}^1$

素因数の和:1923

約数の個数: 32

約数和(自身を含む): 44031600

約数和(自身を除く): 22111256

約数列:

[1, 2, 4, 8, 17, 34, 68, 89, 136, 178, 356, 712, 1513, 1811, 3026, 3622, 6052, 7244, 12104, 14488, 30787, 61574, 123148, 161179, 246296, 322358, 644716, 1289432, 2740043, 5480086, 10960172, 21920344]

約数ペア:

[(1, 21920344), (2, 10960172), (4, 5480086), (8, 2740043), (17, 1289432), (34, 644716), (68, 322358), (89, 246296), (136, 161179), (178, 123148), (356, 61574), (712, 30787), (1513, 14488), (1811, 12104), (3026, 7244), (3622, 6052)]