21147304

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{23}}^2\times {\mathrm{263}}^1$

素因数の和:334

約数の個数: 48

約数和(自身を含む): 43797600

約数和(自身を除く): 22650296

約数列:

[1, 2, 4, 8, 19, 23, 38, 46, 76, 92, 152, 184, 263, 437, 526, 529, 874, 1052, 1058, 1748, 2104, 2116, 3496, 4232, 4997, 6049, 9994, 10051, 12098, 19988, 20102, 24196, 39976, 40204, 48392, 80408, 114931, 139127, 229862, 278254, 459724, 556508, 919448, 1113016, 2643413, 5286826, 10573652, 21147304]

約数ペア:

[(1, 21147304), (2, 10573652), (4, 5286826), (8, 2643413), (19, 1113016), (23, 919448), (38, 556508), (46, 459724), (76, 278254), (92, 229862), (152, 139127), (184, 114931), (263, 80408), (437, 48392), (526, 40204), (529, 39976), (874, 24196), (1052, 20102), (1058, 19988), (1748, 12098), (2104, 10051), (2116, 9994), (3496, 6049), (4232, 4997)]