20501019

素因数分解:

$3^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{173}}^1$

素因数の和:222

約数の個数: 80

約数和(自身を含む): 40423680

約数和(自身を除く): 19922661

約数列:

[1, 3, 7, 9, 11, 19, 21, 27, 33, 57, 63, 77, 81, 99, 133, 171, 173, 189, 209, 231, 297, 399, 513, 519, 567, 627, 693, 891, 1197, 1211, 1463, 1539, 1557, 1881, 1903, 2079, 3287, 3591, 3633, 4389, 4671, 5643, 5709, 6237, 9861, 10773, 10899, 13167, 13321, 14013, 16929, 17127, 23009, 29583, 32697, 36157, 39501, 39963, 51381, 69027, 88749, 98091, 108471, 118503, 119889, 154143, 207081, 253099, 266247, 325413, 359667, 621243, 759297, 976239, 1079001, 1863729, 2277891, 2928717, 6833673, 20501019]

約数ペア:

[(1, 20501019), (3, 6833673), (7, 2928717), (9, 2277891), (11, 1863729), (19, 1079001), (21, 976239), (27, 759297), (33, 621243), (57, 359667), (63, 325413), (77, 266247), (81, 253099), (99, 207081), (133, 154143), (171, 119889), (173, 118503), (189, 108471), (209, 98091), (231, 88749), (297, 69027), (399, 51381), (513, 39963), (519, 39501), (567, 36157), (627, 32697), (693, 29583), (891, 23009), (1197, 17127), (1211, 16929), (1463, 14013), (1539, 13321), (1557, 13167), (1881, 10899), (1903, 10773), (2079, 9861), (3287, 6237), (3591, 5709), (3633, 5643), (4389, 4671)]