21787716

素因数分解:

$2^2\times 3^1\times {\mathrm{23}}^1\times {\mathrm{78941}}^1$

素因数の和:78971

約数の個数: 24

約数和(自身を含む): 53049024

約数和(自身を除く): 31261308

約数列:

[1, 2, 3, 4, 6, 12, 23, 46, 69, 92, 138, 276, 78941, 157882, 236823, 315764, 473646, 947292, 1815643, 3631286, 5446929, 7262572, 10893858, 21787716]

約数ペア:

[(1, 21787716), (2, 10893858), (3, 7262572), (4, 5446929), (6, 3631286), (12, 1815643), (23, 947292), (46, 473646), (69, 315764), (92, 236823), (138, 157882), (276, 78941)]