20213306481

素因数分解:

$3^1\times {\mathrm{79}}^1\times {\mathrm{227}}^1\times {\mathrm{241}}^1\times {\mathrm{1559}}^1$

素因数の和:2109

約数の個数: 32

約数和(自身を含む): 27543859200

約数和(自身を除く): 7330552719

約数列:

[1, 3, 79, 227, 237, 241, 681, 723, 1559, 4677, 17933, 19039, 53799, 54707, 57117, 123161, 164121, 353893, 369483, 375719, 1061679, 1127157, 4321853, 12965559, 27957547, 29681801, 83872641, 85288213, 89045403, 255864639, 6737768827, 20213306481]

約数ペア:

[(1, 20213306481), (3, 6737768827), (79, 255864639), (227, 89045403), (237, 85288213), (241, 83872641), (681, 29681801), (723, 27957547), (1559, 12965559), (4677, 4321853), (17933, 1127157), (19039, 1061679), (53799, 375719), (54707, 369483), (57117, 353893), (123161, 164121)]