20391276003

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{599}}^1\times {\mathrm{37699}}^1$

素因数の和:38351

約数の個数: 32

約数和(自身を含む): 31848960000

約数和(自身を除く): 11457683997

約数列:

[1, 3, 7, 21, 43, 129, 301, 599, 903, 1797, 4193, 12579, 25757, 37699, 77271, 113097, 180299, 263893, 540897, 791679, 1621057, 4863171, 11347399, 22581701, 34042197, 67745103, 158071907, 474215721, 971013143, 2913039429, 6797092001, 20391276003]

約数ペア:

[(1, 20391276003), (3, 6797092001), (7, 2913039429), (21, 971013143), (43, 474215721), (129, 158071907), (301, 67745103), (599, 34042197), (903, 22581701), (1797, 11347399), (4193, 4863171), (12579, 1621057), (25757, 791679), (37699, 540897), (77271, 263893), (113097, 180299)]