21439638

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{139}}^1$

素因数の和:218

約数の個数: 96

約数和(自身を含む): 55036800

約数和(自身を除く): 33597162

約数列:

[1, 2, 3, 6, 9, 11, 18, 19, 22, 33, 38, 41, 57, 66, 82, 99, 114, 123, 139, 171, 198, 209, 246, 278, 342, 369, 417, 418, 451, 627, 738, 779, 834, 902, 1251, 1254, 1353, 1529, 1558, 1881, 2337, 2502, 2641, 2706, 3058, 3762, 4059, 4587, 4674, 5282, 5699, 7011, 7923, 8118, 8569, 9174, 11398, 13761, 14022, 15846, 17097, 17138, 23769, 25707, 27522, 29051, 34194, 47538, 51291, 51414, 58102, 62689, 77121, 87153, 102582, 108281, 125378, 154242, 174306, 188067, 216562, 261459, 324843, 376134, 522918, 564201, 649686, 974529, 1128402, 1191091, 1949058, 2382182, 3573273, 7146546, 10719819, 21439638]

約数ペア:

[(1, 21439638), (2, 10719819), (3, 7146546), (6, 3573273), (9, 2382182), (11, 1949058), (18, 1191091), (19, 1128402), (22, 974529), (33, 649686), (38, 564201), (41, 522918), (57, 376134), (66, 324843), (82, 261459), (99, 216562), (114, 188067), (123, 174306), (139, 154242), (171, 125378), (198, 108281), (209, 102582), (246, 87153), (278, 77121), (342, 62689), (369, 58102), (417, 51414), (418, 51291), (451, 47538), (627, 34194), (738, 29051), (779, 27522), (834, 25707), (902, 23769), (1251, 17138), (1254, 17097), (1353, 15846), (1529, 14022), (1558, 13761), (1881, 11398), (2337, 9174), (2502, 8569), (2641, 8118), (2706, 7923), (3058, 7011), (3762, 5699), (4059, 5282), (4587, 4674)]