20994492

素因数分解:

$2^2\times 3^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1$

素因数の和:163

約数の個数: 96

約数和(自身を含む): 54996480

約数和(自身を除く): 34001988

約数列:

[1, 2, 3, 4, 6, 12, 23, 29, 43, 46, 58, 61, 69, 86, 87, 92, 116, 122, 129, 138, 172, 174, 183, 244, 258, 276, 348, 366, 516, 667, 732, 989, 1247, 1334, 1403, 1769, 1978, 2001, 2494, 2623, 2668, 2806, 2967, 3538, 3741, 3956, 4002, 4209, 4988, 5246, 5307, 5612, 5934, 7076, 7482, 7869, 8004, 8418, 10492, 10614, 11868, 14964, 15738, 16836, 21228, 28681, 31476, 40687, 57362, 60329, 76067, 81374, 86043, 114724, 120658, 122061, 152134, 162748, 172086, 180987, 228201, 241316, 244122, 304268, 344172, 361974, 456402, 488244, 723948, 912804, 1749541, 3499082, 5248623, 6998164, 10497246, 20994492]

約数ペア:

[(1, 20994492), (2, 10497246), (3, 6998164), (4, 5248623), (6, 3499082), (12, 1749541), (23, 912804), (29, 723948), (43, 488244), (46, 456402), (58, 361974), (61, 344172), (69, 304268), (86, 244122), (87, 241316), (92, 228201), (116, 180987), (122, 172086), (129, 162748), (138, 152134), (172, 122061), (174, 120658), (183, 114724), (244, 86043), (258, 81374), (276, 76067), (348, 60329), (366, 57362), (516, 40687), (667, 31476), (732, 28681), (989, 21228), (1247, 16836), (1334, 15738), (1403, 14964), (1769, 11868), (1978, 10614), (2001, 10492), (2494, 8418), (2623, 8004), (2668, 7869), (2806, 7482), (2967, 7076), (3538, 5934), (3741, 5612), (3956, 5307), (4002, 5246), (4209, 4988)]