18156723

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{107}}^1\times {\mathrm{229}}^1$

素因数の和:371

約数の個数: 32

約数和(自身を含む): 27820800

約数和(自身を除く): 9664077

約数列:

[1, 3, 13, 19, 39, 57, 107, 229, 247, 321, 687, 741, 1391, 2033, 2977, 4173, 4351, 6099, 8931, 13053, 24503, 26429, 56563, 73509, 79287, 169689, 318539, 465557, 955617, 1396671, 6052241, 18156723]

約数ペア:

[(1, 18156723), (3, 6052241), (13, 1396671), (19, 955617), (39, 465557), (57, 318539), (107, 169689), (229, 79287), (247, 73509), (321, 56563), (687, 26429), (741, 24503), (1391, 13053), (2033, 8931), (2977, 6099), (4173, 4351)]