21587832

素因数分解:

$2^3\times 3^2\times 7^2\times {\mathrm{29}}^1\times {\mathrm{211}}^1$

素因数の和:266

約数の個数: 144

約数和(自身を含む): 70691400

約数和(自身を除く): 49103568

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 28, 29, 36, 42, 49, 56, 58, 63, 72, 84, 87, 98, 116, 126, 147, 168, 174, 196, 203, 211, 232, 252, 261, 294, 348, 392, 406, 422, 441, 504, 522, 588, 609, 633, 696, 812, 844, 882, 1044, 1176, 1218, 1266, 1421, 1477, 1624, 1688, 1764, 1827, 1899, 2088, 2436, 2532, 2842, 2954, 3528, 3654, 3798, 4263, 4431, 4872, 5064, 5684, 5908, 6119, 7308, 7596, 8526, 8862, 10339, 11368, 11816, 12238, 12789, 13293, 14616, 15192, 17052, 17724, 18357, 20678, 24476, 25578, 26586, 31017, 34104, 35448, 36714, 41356, 42833, 48952, 51156, 53172, 55071, 62034, 73428, 82712, 85666, 93051, 102312, 106344, 110142, 124068, 128499, 146856, 171332, 186102, 220284, 248136, 256998, 299831, 342664, 372204, 385497, 440568, 513996, 599662, 744408, 770994, 899493, 1027992, 1199324, 1541988, 1798986, 2398648, 2698479, 3083976, 3597972, 5396958, 7195944, 10793916, 21587832]

約数ペア:

[(1, 21587832), (2, 10793916), (3, 7195944), (4, 5396958), (6, 3597972), (7, 3083976), (8, 2698479), (9, 2398648), (12, 1798986), (14, 1541988), (18, 1199324), (21, 1027992), (24, 899493), (28, 770994), (29, 744408), (36, 599662), (42, 513996), (49, 440568), (56, 385497), (58, 372204), (63, 342664), (72, 299831), (84, 256998), (87, 248136), (98, 220284), (116, 186102), (126, 171332), (147, 146856), (168, 128499), (174, 124068), (196, 110142), (203, 106344), (211, 102312), (232, 93051), (252, 85666), (261, 82712), (294, 73428), (348, 62034), (392, 55071), (406, 53172), (422, 51156), (441, 48952), (504, 42833), (522, 41356), (588, 36714), (609, 35448), (633, 34104), (696, 31017), (812, 26586), (844, 25578), (882, 24476), (1044, 20678), (1176, 18357), (1218, 17724), (1266, 17052), (1421, 15192), (1477, 14616), (1624, 13293), (1688, 12789), (1764, 12238), (1827, 11816), (1899, 11368), (2088, 10339), (2436, 8862), (2532, 8526), (2842, 7596), (2954, 7308), (3528, 6119), (3654, 5908), (3798, 5684), (4263, 5064), (4431, 4872)]