21849906

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{113}}^1$

素因数の和:235

約数の個数: 64

約数和(自身を含む): 49488768

約数和(自身を除く): 27638862

約数列:

[1, 2, 3, 6, 13, 26, 37, 39, 67, 74, 78, 111, 113, 134, 201, 222, 226, 339, 402, 481, 678, 871, 962, 1443, 1469, 1742, 2479, 2613, 2886, 2938, 4181, 4407, 4958, 5226, 7437, 7571, 8362, 8814, 12543, 14874, 15142, 22713, 25086, 32227, 45426, 54353, 64454, 96681, 98423, 108706, 163059, 193362, 196846, 280127, 295269, 326118, 560254, 590538, 840381, 1680762, 3641651, 7283302, 10924953, 21849906]

約数ペア:

[(1, 21849906), (2, 10924953), (3, 7283302), (6, 3641651), (13, 1680762), (26, 840381), (37, 590538), (39, 560254), (67, 326118), (74, 295269), (78, 280127), (111, 196846), (113, 193362), (134, 163059), (201, 108706), (222, 98423), (226, 96681), (339, 64454), (402, 54353), (481, 45426), (678, 32227), (871, 25086), (962, 22713), (1443, 15142), (1469, 14874), (1742, 12543), (2479, 8814), (2613, 8362), (2886, 7571), (2938, 7437), (4181, 5226), (4407, 4958)]