20218888

素因数分解:

$2^3\times {\mathrm{19}}^2\times {\mathrm{7001}}^1$

素因数の和:7045

約数の個数: 24

約数和(自身を含む): 40016430

約数和(自身を除く): 19797542

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 361, 722, 1444, 2888, 7001, 14002, 28004, 56008, 133019, 266038, 532076, 1064152, 2527361, 5054722, 10109444, 20218888]

約数ペア:

[(1, 20218888), (2, 10109444), (4, 5054722), (8, 2527361), (19, 1064152), (38, 532076), (76, 266038), (152, 133019), (361, 56008), (722, 28004), (1444, 14002), (2888, 7001)]