12781208

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{2381}}^1$

素因数の和:2459

約数の個数: 32

約数和(自身を含む): 26583120

約数和(自身を除く): 13801912

約数列:

[1, 2, 4, 8, 11, 22, 44, 61, 88, 122, 244, 488, 671, 1342, 2381, 2684, 4762, 5368, 9524, 19048, 26191, 52382, 104764, 145241, 209528, 290482, 580964, 1161928, 1597651, 3195302, 6390604, 12781208]

約数ペア:

[(1, 12781208), (2, 6390604), (4, 3195302), (8, 1597651), (11, 1161928), (22, 580964), (44, 290482), (61, 209528), (88, 145241), (122, 104764), (244, 52382), (488, 26191), (671, 19048), (1342, 9524), (2381, 5368), (2684, 4762)]