21538836

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{499}}^1$

素因数の和:629

約数の個数: 72

約数和(自身を含む): 60060000

約数和(自身を除く): 38521164

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 33, 36, 44, 66, 99, 109, 132, 198, 218, 327, 396, 436, 499, 654, 981, 998, 1199, 1308, 1497, 1962, 1996, 2398, 2994, 3597, 3924, 4491, 4796, 5489, 5988, 7194, 8982, 10791, 10978, 14388, 16467, 17964, 21582, 21956, 32934, 43164, 49401, 54391, 65868, 98802, 108782, 163173, 197604, 217564, 326346, 489519, 598301, 652692, 979038, 1196602, 1794903, 1958076, 2393204, 3589806, 5384709, 7179612, 10769418, 21538836]

約数ペア:

[(1, 21538836), (2, 10769418), (3, 7179612), (4, 5384709), (6, 3589806), (9, 2393204), (11, 1958076), (12, 1794903), (18, 1196602), (22, 979038), (33, 652692), (36, 598301), (44, 489519), (66, 326346), (99, 217564), (109, 197604), (132, 163173), (198, 108782), (218, 98802), (327, 65868), (396, 54391), (436, 49401), (499, 43164), (654, 32934), (981, 21956), (998, 21582), (1199, 17964), (1308, 16467), (1497, 14388), (1962, 10978), (1996, 10791), (2398, 8982), (2994, 7194), (3597, 5988), (3924, 5489), (4491, 4796)]