21721154

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{5189}}^1$

素因数の和:5234

約数の個数: 32

約数和(自身を含む): 41852160

約数和(自身を除く): 20131006

約数列:

[1, 2, 7, 13, 14, 23, 26, 46, 91, 161, 182, 299, 322, 598, 2093, 4186, 5189, 10378, 36323, 67457, 72646, 119347, 134914, 238694, 472199, 835429, 944398, 1551511, 1670858, 3103022, 10860577, 21721154]

約数ペア:

[(1, 21721154), (2, 10860577), (7, 3103022), (13, 1670858), (14, 1551511), (23, 944398), (26, 835429), (46, 472199), (91, 238694), (161, 134914), (182, 119347), (299, 72646), (322, 67457), (598, 36323), (2093, 10378), (4186, 5189)]