21808440

素因数分解:

$2^3\times 3^4\times 5^1\times {\mathrm{53}}^1\times {\mathrm{127}}^1$

素因数の和:203

約数の個数: 160

約数和(自身を含む): 75271680

約数和(自身を除く): 53463240

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 53, 54, 60, 72, 81, 90, 106, 108, 120, 127, 135, 159, 162, 180, 212, 216, 254, 265, 270, 318, 324, 360, 381, 405, 424, 477, 508, 530, 540, 635, 636, 648, 762, 795, 810, 954, 1016, 1060, 1080, 1143, 1270, 1272, 1431, 1524, 1590, 1620, 1905, 1908, 2120, 2286, 2385, 2540, 2862, 3048, 3180, 3240, 3429, 3810, 3816, 4293, 4572, 4770, 5080, 5715, 5724, 6360, 6731, 6858, 7155, 7620, 8586, 9144, 9540, 10287, 11430, 11448, 13462, 13716, 14310, 15240, 17145, 17172, 19080, 20193, 20574, 21465, 22860, 26924, 27432, 28620, 33655, 34290, 34344, 40386, 41148, 42930, 45720, 51435, 53848, 57240, 60579, 67310, 68580, 80772, 82296, 85860, 100965, 102870, 121158, 134620, 137160, 161544, 171720, 181737, 201930, 205740, 242316, 269240, 302895, 363474, 403860, 411480, 484632, 545211, 605790, 726948, 807720, 908685, 1090422, 1211580, 1453896, 1817370, 2180844, 2423160, 2726055, 3634740, 4361688, 5452110, 7269480, 10904220, 21808440]

約数ペア:

[(1, 21808440), (2, 10904220), (3, 7269480), (4, 5452110), (5, 4361688), (6, 3634740), (8, 2726055), (9, 2423160), (10, 2180844), (12, 1817370), (15, 1453896), (18, 1211580), (20, 1090422), (24, 908685), (27, 807720), (30, 726948), (36, 605790), (40, 545211), (45, 484632), (53, 411480), (54, 403860), (60, 363474), (72, 302895), (81, 269240), (90, 242316), (106, 205740), (108, 201930), (120, 181737), (127, 171720), (135, 161544), (159, 137160), (162, 134620), (180, 121158), (212, 102870), (216, 100965), (254, 85860), (265, 82296), (270, 80772), (318, 68580), (324, 67310), (360, 60579), (381, 57240), (405, 53848), (424, 51435), (477, 45720), (508, 42930), (530, 41148), (540, 40386), (635, 34344), (636, 34290), (648, 33655), (762, 28620), (795, 27432), (810, 26924), (954, 22860), (1016, 21465), (1060, 20574), (1080, 20193), (1143, 19080), (1270, 17172), (1272, 17145), (1431, 15240), (1524, 14310), (1590, 13716), (1620, 13462), (1905, 11448), (1908, 11430), (2120, 10287), (2286, 9540), (2385, 9144), (2540, 8586), (2862, 7620), (3048, 7155), (3180, 6858), (3240, 6731), (3429, 6360), (3810, 5724), (3816, 5715), (4293, 5080), (4572, 4770)]