21386964

素因数分解:

$2^2\times 3^1\times {\mathrm{23}}^1\times {\mathrm{77489}}^1$

素因数の和:77519

約数の個数: 24

約数和(自身を含む): 52073280

約数和(自身を除く): 30686316

約数列:

[1, 2, 3, 4, 6, 12, 23, 46, 69, 92, 138, 276, 77489, 154978, 232467, 309956, 464934, 929868, 1782247, 3564494, 5346741, 7128988, 10693482, 21386964]

約数ペア:

[(1, 21386964), (2, 10693482), (3, 7128988), (4, 5346741), (6, 3564494), (12, 1782247), (23, 929868), (46, 464934), (69, 309956), (92, 232467), (138, 154978), (276, 77489)]