20926311

素因数分解:

$3^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{107}}^1\times {\mathrm{139}}^1$

素因数の和:323

約数の個数: 32

約数和(自身を含む): 32901120

約数和(自身を除く): 11974809

約数列:

[1, 3, 7, 21, 67, 107, 139, 201, 321, 417, 469, 749, 973, 1407, 2247, 2919, 7169, 9313, 14873, 21507, 27939, 44619, 50183, 65191, 104111, 150549, 195573, 312333, 996491, 2989473, 6975437, 20926311]

約数ペア:

[(1, 20926311), (3, 6975437), (7, 2989473), (21, 996491), (67, 312333), (107, 195573), (139, 150549), (201, 104111), (321, 65191), (417, 50183), (469, 44619), (749, 27939), (973, 21507), (1407, 14873), (2247, 9313), (2919, 7169)]