20913738

素因数分解:

$2^1\times 3^1\times {\mathrm{43}}^1\times {\mathrm{103}}^1\times {\mathrm{787}}^1$

素因数の和:938

約数の個数: 32

約数和(自身を含む): 43270656

約数和(自身を除く): 22356918

約数列:

[1, 2, 3, 6, 43, 86, 103, 129, 206, 258, 309, 618, 787, 1574, 2361, 4429, 4722, 8858, 13287, 26574, 33841, 67682, 81061, 101523, 162122, 203046, 243183, 486366, 3485623, 6971246, 10456869, 20913738]

約数ペア:

[(1, 20913738), (2, 10456869), (3, 6971246), (6, 3485623), (43, 486366), (86, 243183), (103, 203046), (129, 162122), (206, 101523), (258, 81061), (309, 67682), (618, 33841), (787, 26574), (1574, 13287), (2361, 8858), (4429, 4722)]