21212049

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{173}}^1\times {\mathrm{1777}}^1$

素因数の和:1976

約数の個数: 16

約数和(自身を含む): 29699712

約数和(自身を除く): 8487663

約数列:

[1, 3, 23, 69, 173, 519, 1777, 3979, 5331, 11937, 40871, 122613, 307421, 922263, 7070683, 21212049]

約数ペア:

[(1, 21212049), (3, 7070683), (23, 922263), (69, 307421), (173, 122613), (519, 40871), (1777, 11937), (3979, 5331)]