21878064

素因数分解:

$2^4\times 3^2\times {\mathrm{13}}^2\times {\mathrm{29}}^1\times {\mathrm{31}}^1$

素因数の和:100

約数の個数: 180

約数和(自身を含む): 70799040

約数和(自身を除く): 48920976

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 29, 31, 36, 39, 48, 52, 58, 62, 72, 78, 87, 93, 104, 116, 117, 124, 144, 156, 169, 174, 186, 208, 232, 234, 248, 261, 279, 312, 338, 348, 372, 377, 403, 464, 468, 496, 507, 522, 558, 624, 676, 696, 744, 754, 806, 899, 936, 1014, 1044, 1116, 1131, 1209, 1352, 1392, 1488, 1508, 1521, 1612, 1798, 1872, 2028, 2088, 2232, 2262, 2418, 2697, 2704, 3016, 3042, 3224, 3393, 3596, 3627, 4056, 4176, 4464, 4524, 4836, 4901, 5239, 5394, 6032, 6084, 6448, 6786, 7192, 7254, 8091, 8112, 9048, 9672, 9802, 10478, 10788, 11687, 12168, 13572, 14384, 14508, 14703, 15717, 16182, 18096, 19344, 19604, 20956, 21576, 23374, 24336, 27144, 29016, 29406, 31434, 32364, 35061, 39208, 41912, 43152, 44109, 46748, 47151, 54288, 58032, 58812, 62868, 64728, 70122, 78416, 83824, 88218, 93496, 94302, 105183, 117624, 125736, 129456, 140244, 151931, 176436, 186992, 188604, 210366, 235248, 251472, 280488, 303862, 352872, 377208, 420732, 455793, 560976, 607724, 705744, 754416, 841464, 911586, 1215448, 1367379, 1682928, 1823172, 2430896, 2734758, 3646344, 5469516, 7292688, 10939032, 21878064]

約数ペア:

[(1, 21878064), (2, 10939032), (3, 7292688), (4, 5469516), (6, 3646344), (8, 2734758), (9, 2430896), (12, 1823172), (13, 1682928), (16, 1367379), (18, 1215448), (24, 911586), (26, 841464), (29, 754416), (31, 705744), (36, 607724), (39, 560976), (48, 455793), (52, 420732), (58, 377208), (62, 352872), (72, 303862), (78, 280488), (87, 251472), (93, 235248), (104, 210366), (116, 188604), (117, 186992), (124, 176436), (144, 151931), (156, 140244), (169, 129456), (174, 125736), (186, 117624), (208, 105183), (232, 94302), (234, 93496), (248, 88218), (261, 83824), (279, 78416), (312, 70122), (338, 64728), (348, 62868), (372, 58812), (377, 58032), (403, 54288), (464, 47151), (468, 46748), (496, 44109), (507, 43152), (522, 41912), (558, 39208), (624, 35061), (676, 32364), (696, 31434), (744, 29406), (754, 29016), (806, 27144), (899, 24336), (936, 23374), (1014, 21576), (1044, 20956), (1116, 19604), (1131, 19344), (1209, 18096), (1352, 16182), (1392, 15717), (1488, 14703), (1508, 14508), (1521, 14384), (1612, 13572), (1798, 12168), (1872, 11687), (2028, 10788), (2088, 10478), (2232, 9802), (2262, 9672), (2418, 9048), (2697, 8112), (2704, 8091), (3016, 7254), (3042, 7192), (3224, 6786), (3393, 6448), (3596, 6084), (3627, 6032), (4056, 5394), (4176, 5239), (4464, 4901), (4524, 4836)]