21497436

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{593}}^1$

素因数の和:675

約数の個数: 72

約数和(自身を含む): 58378320

約数和(自身を除く): 36880884

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 36, 38, 53, 57, 76, 106, 114, 159, 171, 212, 228, 318, 342, 477, 593, 636, 684, 954, 1007, 1186, 1779, 1908, 2014, 2372, 3021, 3558, 4028, 5337, 6042, 7116, 9063, 10674, 11267, 12084, 18126, 21348, 22534, 31429, 33801, 36252, 45068, 62858, 67602, 94287, 101403, 125716, 135204, 188574, 202806, 282861, 377148, 405612, 565722, 597151, 1131444, 1194302, 1791453, 2388604, 3582906, 5374359, 7165812, 10748718, 21497436]

約数ペア:

[(1, 21497436), (2, 10748718), (3, 7165812), (4, 5374359), (6, 3582906), (9, 2388604), (12, 1791453), (18, 1194302), (19, 1131444), (36, 597151), (38, 565722), (53, 405612), (57, 377148), (76, 282861), (106, 202806), (114, 188574), (159, 135204), (171, 125716), (212, 101403), (228, 94287), (318, 67602), (342, 62858), (477, 45068), (593, 36252), (636, 33801), (684, 31429), (954, 22534), (1007, 21348), (1186, 18126), (1779, 12084), (1908, 11267), (2014, 10674), (2372, 9063), (3021, 7116), (3558, 6042), (4028, 5337)]