21782712

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{263}}^1$

素因数の和:325

約数の個数: 128

約数和(自身を含む): 68428800

約数和(自身を除く): 46646088

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 17, 21, 24, 28, 29, 34, 42, 51, 56, 58, 68, 84, 87, 102, 116, 119, 136, 168, 174, 203, 204, 232, 238, 263, 348, 357, 406, 408, 476, 493, 526, 609, 696, 714, 789, 812, 952, 986, 1052, 1218, 1428, 1479, 1578, 1624, 1841, 1972, 2104, 2436, 2856, 2958, 3156, 3451, 3682, 3944, 4471, 4872, 5523, 5916, 6312, 6902, 7364, 7627, 8942, 10353, 11046, 11832, 13413, 13804, 14728, 15254, 17884, 20706, 22092, 22881, 26826, 27608, 30508, 31297, 35768, 41412, 44184, 45762, 53389, 53652, 61016, 62594, 82824, 91524, 93891, 106778, 107304, 125188, 129659, 160167, 183048, 187782, 213556, 250376, 259318, 320334, 375564, 388977, 427112, 518636, 640668, 751128, 777954, 907613, 1037272, 1281336, 1555908, 1815226, 2722839, 3111816, 3630452, 5445678, 7260904, 10891356, 21782712]

約数ペア:

[(1, 21782712), (2, 10891356), (3, 7260904), (4, 5445678), (6, 3630452), (7, 3111816), (8, 2722839), (12, 1815226), (14, 1555908), (17, 1281336), (21, 1037272), (24, 907613), (28, 777954), (29, 751128), (34, 640668), (42, 518636), (51, 427112), (56, 388977), (58, 375564), (68, 320334), (84, 259318), (87, 250376), (102, 213556), (116, 187782), (119, 183048), (136, 160167), (168, 129659), (174, 125188), (203, 107304), (204, 106778), (232, 93891), (238, 91524), (263, 82824), (348, 62594), (357, 61016), (406, 53652), (408, 53389), (476, 45762), (493, 44184), (526, 41412), (609, 35768), (696, 31297), (714, 30508), (789, 27608), (812, 26826), (952, 22881), (986, 22092), (1052, 20706), (1218, 17884), (1428, 15254), (1479, 14728), (1578, 13804), (1624, 13413), (1841, 11832), (1972, 11046), (2104, 10353), (2436, 8942), (2856, 7627), (2958, 7364), (3156, 6902), (3451, 6312), (3682, 5916), (3944, 5523), (4471, 4872)]