21420344

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{5179}}^1$

素因数の和:5243

約数の個数: 32

約数和(自身を含む): 44755200

約数和(自身を除く): 23334856

約数列:

[1, 2, 4, 8, 11, 22, 44, 47, 88, 94, 188, 376, 517, 1034, 2068, 4136, 5179, 10358, 20716, 41432, 56969, 113938, 227876, 243413, 455752, 486826, 973652, 1947304, 2677543, 5355086, 10710172, 21420344]

約数ペア:

[(1, 21420344), (2, 10710172), (4, 5355086), (8, 2677543), (11, 1947304), (22, 973652), (44, 486826), (47, 455752), (88, 243413), (94, 227876), (188, 113938), (376, 56969), (517, 41432), (1034, 20716), (2068, 10358), (4136, 5179)]