20996928

素因数分解:

$2^6\times 3^3\times {\mathrm{29}}^1\times {\mathrm{419}}^1$

素因数の和:469

約数の個数: 112

約数和(自身を含む): 64008000

約数和(自身を除く): 43011072

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 29, 32, 36, 48, 54, 58, 64, 72, 87, 96, 108, 116, 144, 174, 192, 216, 232, 261, 288, 348, 419, 432, 464, 522, 576, 696, 783, 838, 864, 928, 1044, 1257, 1392, 1566, 1676, 1728, 1856, 2088, 2514, 2784, 3132, 3352, 3771, 4176, 5028, 5568, 6264, 6704, 7542, 8352, 10056, 11313, 12151, 12528, 13408, 15084, 16704, 20112, 22626, 24302, 25056, 26816, 30168, 36453, 40224, 45252, 48604, 50112, 60336, 72906, 80448, 90504, 97208, 109359, 120672, 145812, 181008, 194416, 218718, 241344, 291624, 328077, 362016, 388832, 437436, 583248, 656154, 724032, 777664, 874872, 1166496, 1312308, 1749744, 2332992, 2624616, 3499488, 5249232, 6998976, 10498464, 20996928]

約数ペア:

[(1, 20996928), (2, 10498464), (3, 6998976), (4, 5249232), (6, 3499488), (8, 2624616), (9, 2332992), (12, 1749744), (16, 1312308), (18, 1166496), (24, 874872), (27, 777664), (29, 724032), (32, 656154), (36, 583248), (48, 437436), (54, 388832), (58, 362016), (64, 328077), (72, 291624), (87, 241344), (96, 218718), (108, 194416), (116, 181008), (144, 145812), (174, 120672), (192, 109359), (216, 97208), (232, 90504), (261, 80448), (288, 72906), (348, 60336), (419, 50112), (432, 48604), (464, 45252), (522, 40224), (576, 36453), (696, 30168), (783, 26816), (838, 25056), (864, 24302), (928, 22626), (1044, 20112), (1257, 16704), (1392, 15084), (1566, 13408), (1676, 12528), (1728, 12151), (1856, 11313), (2088, 10056), (2514, 8352), (2784, 7542), (3132, 6704), (3352, 6264), (3771, 5568), (4176, 5028)]