21426912

素因数分解:

$2^5\times 3^2\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{97}}^1$

素因数の和:185

約数の個数: 144

約数和(自身を含む): 67420080

約数和(自身を除く): 45993168

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 32, 36, 39, 48, 52, 59, 72, 78, 96, 97, 104, 117, 118, 144, 156, 177, 194, 208, 234, 236, 288, 291, 312, 354, 388, 416, 468, 472, 531, 582, 624, 708, 767, 776, 873, 936, 944, 1062, 1164, 1248, 1261, 1416, 1534, 1552, 1746, 1872, 1888, 2124, 2301, 2328, 2522, 2832, 3068, 3104, 3492, 3744, 3783, 4248, 4602, 4656, 5044, 5664, 5723, 6136, 6903, 6984, 7566, 8496, 9204, 9312, 10088, 11349, 11446, 12272, 13806, 13968, 15132, 16992, 17169, 18408, 20176, 22698, 22892, 24544, 27612, 27936, 30264, 34338, 36816, 40352, 45396, 45784, 51507, 55224, 60528, 68676, 73632, 74399, 90792, 91568, 103014, 110448, 121056, 137352, 148798, 181584, 183136, 206028, 220896, 223197, 274704, 297596, 363168, 412056, 446394, 549408, 595192, 669591, 824112, 892788, 1190384, 1339182, 1648224, 1785576, 2380768, 2678364, 3571152, 5356728, 7142304, 10713456, 21426912]

約数ペア:

[(1, 21426912), (2, 10713456), (3, 7142304), (4, 5356728), (6, 3571152), (8, 2678364), (9, 2380768), (12, 1785576), (13, 1648224), (16, 1339182), (18, 1190384), (24, 892788), (26, 824112), (32, 669591), (36, 595192), (39, 549408), (48, 446394), (52, 412056), (59, 363168), (72, 297596), (78, 274704), (96, 223197), (97, 220896), (104, 206028), (117, 183136), (118, 181584), (144, 148798), (156, 137352), (177, 121056), (194, 110448), (208, 103014), (234, 91568), (236, 90792), (288, 74399), (291, 73632), (312, 68676), (354, 60528), (388, 55224), (416, 51507), (468, 45784), (472, 45396), (531, 40352), (582, 36816), (624, 34338), (708, 30264), (767, 27936), (776, 27612), (873, 24544), (936, 22892), (944, 22698), (1062, 20176), (1164, 18408), (1248, 17169), (1261, 16992), (1416, 15132), (1534, 13968), (1552, 13806), (1746, 12272), (1872, 11446), (1888, 11349), (2124, 10088), (2301, 9312), (2328, 9204), (2522, 8496), (2832, 7566), (3068, 6984), (3104, 6903), (3492, 6136), (3744, 5723), (3783, 5664), (4248, 5044), (4602, 4656)]