20085828

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{487}}^1\times {\mathrm{491}}^1$

素因数の和:992

約数の個数: 48

約数和(自身を含む): 53781504

約数和(自身を除く): 33695676

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 487, 491, 974, 982, 1461, 1473, 1948, 1964, 2922, 2946, 3409, 3437, 5844, 5892, 6818, 6874, 10227, 10311, 13636, 13748, 20454, 20622, 40908, 41244, 239117, 478234, 717351, 956468, 1434702, 1673819, 2869404, 3347638, 5021457, 6695276, 10042914, 20085828]

約数ペア:

[(1, 20085828), (2, 10042914), (3, 6695276), (4, 5021457), (6, 3347638), (7, 2869404), (12, 1673819), (14, 1434702), (21, 956468), (28, 717351), (42, 478234), (84, 239117), (487, 41244), (491, 40908), (974, 20622), (982, 20454), (1461, 13748), (1473, 13636), (1948, 10311), (1964, 10227), (2922, 6874), (2946, 6818), (3409, 5892), (3437, 5844)]