21135240

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{8387}}^1$

素因数の和:8411

約数の個数: 96

約数和(自身を含む): 78511680

約数和(自身を除く): 57376440

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 56, 60, 63, 70, 72, 84, 90, 105, 120, 126, 140, 168, 180, 210, 252, 280, 315, 360, 420, 504, 630, 840, 1260, 2520, 8387, 16774, 25161, 33548, 41935, 50322, 58709, 67096, 75483, 83870, 100644, 117418, 125805, 150966, 167740, 176127, 201288, 234836, 251610, 293545, 301932, 335480, 352254, 377415, 469672, 503220, 528381, 587090, 603864, 704508, 754830, 880635, 1006440, 1056762, 1174180, 1409016, 1509660, 1761270, 2113524, 2348360, 2641905, 3019320, 3522540, 4227048, 5283810, 7045080, 10567620, 21135240]

約数ペア:

[(1, 21135240), (2, 10567620), (3, 7045080), (4, 5283810), (5, 4227048), (6, 3522540), (7, 3019320), (8, 2641905), (9, 2348360), (10, 2113524), (12, 1761270), (14, 1509660), (15, 1409016), (18, 1174180), (20, 1056762), (21, 1006440), (24, 880635), (28, 754830), (30, 704508), (35, 603864), (36, 587090), (40, 528381), (42, 503220), (45, 469672), (56, 377415), (60, 352254), (63, 335480), (70, 301932), (72, 293545), (84, 251610), (90, 234836), (105, 201288), (120, 176127), (126, 167740), (140, 150966), (168, 125805), (180, 117418), (210, 100644), (252, 83870), (280, 75483), (315, 67096), (360, 58709), (420, 50322), (504, 41935), (630, 33548), (840, 25161), (1260, 16774), (2520, 8387)]