21580548

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{163}}^1$

素因数の和:257

約数の個数: 96

約数和(自身を含む): 59512320

約数和(自身を除く): 37931772

約数列:

[1, 2, 3, 4, 6, 11, 12, 17, 22, 33, 34, 44, 51, 59, 66, 68, 102, 118, 132, 163, 177, 187, 204, 236, 326, 354, 374, 489, 561, 649, 652, 708, 748, 978, 1003, 1122, 1298, 1793, 1947, 1956, 2006, 2244, 2596, 2771, 3009, 3586, 3894, 4012, 5379, 5542, 6018, 7172, 7788, 8313, 9617, 10758, 11033, 11084, 12036, 16626, 19234, 21516, 22066, 28851, 30481, 33099, 33252, 38468, 44132, 57702, 60962, 66198, 91443, 105787, 115404, 121924, 132396, 163489, 182886, 211574, 317361, 326978, 365772, 423148, 490467, 634722, 653956, 980934, 1269444, 1798379, 1961868, 3596758, 5395137, 7193516, 10790274, 21580548]

約数ペア:

[(1, 21580548), (2, 10790274), (3, 7193516), (4, 5395137), (6, 3596758), (11, 1961868), (12, 1798379), (17, 1269444), (22, 980934), (33, 653956), (34, 634722), (44, 490467), (51, 423148), (59, 365772), (66, 326978), (68, 317361), (102, 211574), (118, 182886), (132, 163489), (163, 132396), (177, 121924), (187, 115404), (204, 105787), (236, 91443), (326, 66198), (354, 60962), (374, 57702), (489, 44132), (561, 38468), (649, 33252), (652, 33099), (708, 30481), (748, 28851), (978, 22066), (1003, 21516), (1122, 19234), (1298, 16626), (1793, 12036), (1947, 11084), (1956, 11033), (2006, 10758), (2244, 9617), (2596, 8313), (2771, 7788), (3009, 7172), (3586, 6018), (3894, 5542), (4012, 5379)]