138408273

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{21569}}^1$

素因数の和:21629

約数の個数: 24

約数和(自身を含む): 215354880

約数和(自身を除く): 76946607

約数列:

[1, 3, 9, 23, 31, 69, 93, 207, 279, 713, 2139, 6417, 21569, 64707, 194121, 496087, 668639, 1488261, 2005917, 4464783, 6017751, 15378697, 46136091, 138408273]

約数ペア:

[(1, 138408273), (3, 46136091), (9, 15378697), (23, 6017751), (31, 4464783), (69, 2005917), (93, 1488261), (207, 668639), (279, 496087), (713, 194121), (2139, 64707), (6417, 21569)]