21875304

素因数分解:

$2^3\times 3^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1$

素因数の和:151

約数の個数: 128

約数和(自身を含む): 63866880

約数和(自身を除く): 41991576

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 22, 24, 33, 41, 43, 44, 47, 66, 82, 86, 88, 94, 123, 129, 132, 141, 164, 172, 188, 246, 258, 264, 282, 328, 344, 376, 451, 473, 492, 516, 517, 564, 902, 946, 984, 1032, 1034, 1128, 1353, 1419, 1551, 1763, 1804, 1892, 1927, 2021, 2068, 2706, 2838, 3102, 3526, 3608, 3784, 3854, 4042, 4136, 5289, 5412, 5676, 5781, 6063, 6204, 7052, 7708, 8084, 10578, 10824, 11352, 11562, 12126, 12408, 14104, 15416, 16168, 19393, 21156, 21197, 22231, 23124, 24252, 38786, 42312, 42394, 44462, 46248, 48504, 58179, 63591, 66693, 77572, 82861, 84788, 88924, 116358, 127182, 133386, 155144, 165722, 169576, 177848, 232716, 248583, 254364, 266772, 331444, 465432, 497166, 508728, 533544, 662888, 911471, 994332, 1822942, 1988664, 2734413, 3645884, 5468826, 7291768, 10937652, 21875304]

約数ペア:

[(1, 21875304), (2, 10937652), (3, 7291768), (4, 5468826), (6, 3645884), (8, 2734413), (11, 1988664), (12, 1822942), (22, 994332), (24, 911471), (33, 662888), (41, 533544), (43, 508728), (44, 497166), (47, 465432), (66, 331444), (82, 266772), (86, 254364), (88, 248583), (94, 232716), (123, 177848), (129, 169576), (132, 165722), (141, 155144), (164, 133386), (172, 127182), (188, 116358), (246, 88924), (258, 84788), (264, 82861), (282, 77572), (328, 66693), (344, 63591), (376, 58179), (451, 48504), (473, 46248), (492, 44462), (516, 42394), (517, 42312), (564, 38786), (902, 24252), (946, 23124), (984, 22231), (1032, 21197), (1034, 21156), (1128, 19393), (1353, 16168), (1419, 15416), (1551, 14104), (1763, 12408), (1804, 12126), (1892, 11562), (1927, 11352), (2021, 10824), (2068, 10578), (2706, 8084), (2838, 7708), (3102, 7052), (3526, 6204), (3608, 6063), (3784, 5781), (3854, 5676), (4042, 5412), (4136, 5289)]