21991382328

素因数分解:

$2^3\times 3^1\times {\mathrm{43}}^1\times {\mathrm{163}}^1\times {\mathrm{239}}^1\times {\mathrm{547}}^1$

素因数の和:1001

約数の個数: 128

約数和(自身を含む): 56942899200

約数和(自身を除く): 34951516872

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 43, 86, 129, 163, 172, 239, 258, 326, 344, 478, 489, 516, 547, 652, 717, 956, 978, 1032, 1094, 1304, 1434, 1641, 1912, 1956, 2188, 2868, 3282, 3912, 4376, 5736, 6564, 7009, 10277, 13128, 14018, 20554, 21027, 23521, 28036, 30831, 38957, 41108, 42054, 47042, 56072, 61662, 70563, 77914, 82216, 84108, 89161, 94084, 116871, 123324, 130733, 141126, 155828, 168216, 178322, 188168, 233742, 246648, 261466, 267483, 282252, 311656, 356644, 392199, 467484, 522932, 534966, 564504, 713288, 784398, 934968, 1045864, 1069932, 1568796, 1675151, 2139864, 3137592, 3350302, 3833923, 5025453, 5621519, 6700604, 7667846, 10050906, 11243038, 11501769, 13401208, 15335692, 16864557, 20101812, 21309479, 22486076, 23003538, 30671384, 33729114, 40203624, 42618958, 44972152, 46007076, 63928437, 67458228, 85237916, 92014152, 127856874, 134916456, 170475832, 255713748, 511427496, 916307597, 1832615194, 2748922791, 3665230388, 5497845582, 7330460776, 10995691164, 21991382328]

約数ペア:

[(1, 21991382328), (2, 10995691164), (3, 7330460776), (4, 5497845582), (6, 3665230388), (8, 2748922791), (12, 1832615194), (24, 916307597), (43, 511427496), (86, 255713748), (129, 170475832), (163, 134916456), (172, 127856874), (239, 92014152), (258, 85237916), (326, 67458228), (344, 63928437), (478, 46007076), (489, 44972152), (516, 42618958), (547, 40203624), (652, 33729114), (717, 30671384), (956, 23003538), (978, 22486076), (1032, 21309479), (1094, 20101812), (1304, 16864557), (1434, 15335692), (1641, 13401208), (1912, 11501769), (1956, 11243038), (2188, 10050906), (2868, 7667846), (3282, 6700604), (3912, 5621519), (4376, 5025453), (5736, 3833923), (6564, 3350302), (7009, 3137592), (10277, 2139864), (13128, 1675151), (14018, 1568796), (20554, 1069932), (21027, 1045864), (23521, 934968), (28036, 784398), (30831, 713288), (38957, 564504), (41108, 534966), (42054, 522932), (47042, 467484), (56072, 392199), (61662, 356644), (70563, 311656), (77914, 282252), (82216, 267483), (84108, 261466), (89161, 246648), (94084, 233742), (116871, 188168), (123324, 178322), (130733, 168216), (141126, 155828)]