21466728

素因数分解:

$2^3\times 3^3\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{149}}^1$

素因数の和:216

約数の個数: 128

約数和(自身を含む): 64800000

約数和(自身を除く): 43333272

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 23, 24, 27, 29, 36, 46, 54, 58, 69, 72, 87, 92, 108, 116, 138, 149, 174, 184, 207, 216, 232, 261, 276, 298, 348, 414, 447, 522, 552, 596, 621, 667, 696, 783, 828, 894, 1044, 1192, 1242, 1334, 1341, 1566, 1656, 1788, 2001, 2088, 2484, 2668, 2682, 3132, 3427, 3576, 4002, 4023, 4321, 4968, 5336, 5364, 6003, 6264, 6854, 8004, 8046, 8642, 10281, 10728, 12006, 12963, 13708, 16008, 16092, 17284, 18009, 20562, 24012, 25926, 27416, 30843, 32184, 34568, 36018, 38889, 41124, 48024, 51852, 61686, 72036, 77778, 82248, 92529, 99383, 103704, 116667, 123372, 144072, 155556, 185058, 198766, 233334, 246744, 298149, 311112, 370116, 397532, 466668, 596298, 740232, 795064, 894447, 933336, 1192596, 1788894, 2385192, 2683341, 3577788, 5366682, 7155576, 10733364, 21466728]

約数ペア:

[(1, 21466728), (2, 10733364), (3, 7155576), (4, 5366682), (6, 3577788), (8, 2683341), (9, 2385192), (12, 1788894), (18, 1192596), (23, 933336), (24, 894447), (27, 795064), (29, 740232), (36, 596298), (46, 466668), (54, 397532), (58, 370116), (69, 311112), (72, 298149), (87, 246744), (92, 233334), (108, 198766), (116, 185058), (138, 155556), (149, 144072), (174, 123372), (184, 116667), (207, 103704), (216, 99383), (232, 92529), (261, 82248), (276, 77778), (298, 72036), (348, 61686), (414, 51852), (447, 48024), (522, 41124), (552, 38889), (596, 36018), (621, 34568), (667, 32184), (696, 30843), (783, 27416), (828, 25926), (894, 24012), (1044, 20562), (1192, 18009), (1242, 17284), (1334, 16092), (1341, 16008), (1566, 13708), (1656, 12963), (1788, 12006), (2001, 10728), (2088, 10281), (2484, 8642), (2668, 8046), (2682, 8004), (3132, 6854), (3427, 6264), (3576, 6003), (4002, 5364), (4023, 5336), (4321, 4968)]