20745918

素因数分解:

$2^1\times 3^2\times {\mathrm{41}}^1\times {\mathrm{28111}}^1$

素因数の和:28160

約数の個数: 24

約数和(自身を含む): 46047456

約数和(自身を除く): 25301538

約数列:

[1, 2, 3, 6, 9, 18, 41, 82, 123, 246, 369, 738, 28111, 56222, 84333, 168666, 252999, 505998, 1152551, 2305102, 3457653, 6915306, 10372959, 20745918]

約数ペア:

[(1, 20745918), (2, 10372959), (3, 6915306), (6, 3457653), (9, 2305102), (18, 1152551), (41, 505998), (82, 252999), (123, 168666), (246, 84333), (369, 56222), (738, 28111)]