18738665

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{47}}^1\times {\mathrm{659}}^1$

素因数の和:733

約数の個数: 24

約数和(自身を含む): 25280640

約数和(自身を除く): 6541975

約数列:

[1, 5, 11, 47, 55, 121, 235, 517, 605, 659, 2585, 3295, 5687, 7249, 28435, 30973, 36245, 79739, 154865, 340703, 398695, 1703515, 3747733, 18738665]

約数ペア:

[(1, 18738665), (5, 3747733), (11, 1703515), (47, 398695), (55, 340703), (121, 154865), (235, 79739), (517, 36245), (605, 30973), (659, 28435), (2585, 7249), (3295, 5687)]