218979423

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{5521}}^1$

素因数の和:5656

約数の個数: 32

約数和(自身を含む): 352524480

約数和(自身を除く): 133545057

約数列:

[1, 3, 9, 13, 27, 39, 113, 117, 339, 351, 1017, 1469, 3051, 4407, 5521, 13221, 16563, 39663, 49689, 71773, 149067, 215319, 623873, 645957, 1871619, 1937871, 5614857, 8110349, 16844571, 24331047, 72993141, 218979423]

約数ペア:

[(1, 218979423), (3, 72993141), (9, 24331047), (13, 16844571), (27, 8110349), (39, 5614857), (113, 1937871), (117, 1871619), (339, 645957), (351, 623873), (1017, 215319), (1469, 149067), (3051, 71773), (4407, 49689), (5521, 39663), (13221, 16563)]