21179790

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{127}}^1$

素因数の和:266

約数の個数: 96

約数和(自身を含む): 59304960

約数和(自身を除く): 38125170

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 17, 18, 30, 34, 45, 51, 85, 90, 102, 109, 127, 153, 170, 218, 254, 255, 306, 327, 381, 510, 545, 635, 654, 762, 765, 981, 1090, 1143, 1270, 1530, 1635, 1853, 1905, 1962, 2159, 2286, 3270, 3706, 3810, 4318, 4905, 5559, 5715, 6477, 9265, 9810, 10795, 11118, 11430, 12954, 13843, 16677, 18530, 19431, 21590, 27686, 27795, 32385, 33354, 38862, 41529, 55590, 64770, 69215, 83058, 83385, 97155, 124587, 138430, 166770, 194310, 207645, 235331, 249174, 415290, 470662, 622935, 705993, 1176655, 1245870, 1411986, 2117979, 2353310, 3529965, 4235958, 7059930, 10589895, 21179790]

約数ペア:

[(1, 21179790), (2, 10589895), (3, 7059930), (5, 4235958), (6, 3529965), (9, 2353310), (10, 2117979), (15, 1411986), (17, 1245870), (18, 1176655), (30, 705993), (34, 622935), (45, 470662), (51, 415290), (85, 249174), (90, 235331), (102, 207645), (109, 194310), (127, 166770), (153, 138430), (170, 124587), (218, 97155), (254, 83385), (255, 83058), (306, 69215), (327, 64770), (381, 55590), (510, 41529), (545, 38862), (635, 33354), (654, 32385), (762, 27795), (765, 27686), (981, 21590), (1090, 19431), (1143, 18530), (1270, 16677), (1530, 13843), (1635, 12954), (1853, 11430), (1905, 11118), (1962, 10795), (2159, 9810), (2286, 9265), (3270, 6477), (3706, 5715), (3810, 5559), (4318, 4905)]