18934047

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{1723}}^1$

素因数の和:1780

約数の個数: 32

約数和(自身を含む): 31445760

約数和(自身を除く): 12511713

約数列:

[1, 3, 9, 11, 27, 33, 37, 99, 111, 297, 333, 407, 999, 1221, 1723, 3663, 5169, 10989, 15507, 18953, 46521, 56859, 63751, 170577, 191253, 511731, 573759, 701261, 1721277, 2103783, 6311349, 18934047]

約数ペア:

[(1, 18934047), (3, 6311349), (9, 2103783), (11, 1721277), (27, 701261), (33, 573759), (37, 511731), (99, 191253), (111, 170577), (297, 63751), (333, 56859), (407, 46521), (999, 18953), (1221, 15507), (1723, 10989), (3663, 5169)]