18321147

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{137}}^1$

素因数の和:289

約数の個数: 40

約数和(自身を含む): 29922816

約数和(自身を除く): 11601669

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 127, 137, 351, 381, 411, 1053, 1143, 1233, 1651, 1781, 3429, 3699, 4953, 5343, 10287, 11097, 14859, 16029, 17399, 44577, 48087, 52197, 133731, 144261, 156591, 226187, 469773, 678561, 1409319, 2035683, 6107049, 18321147]

約数ペア:

[(1, 18321147), (3, 6107049), (9, 2035683), (13, 1409319), (27, 678561), (39, 469773), (81, 226187), (117, 156591), (127, 144261), (137, 133731), (351, 52197), (381, 48087), (411, 44577), (1053, 17399), (1143, 16029), (1233, 14859), (1651, 11097), (1781, 10287), (3429, 5343), (3699, 4953)]