20287174

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{307}}^1$

素因数の和:412

約数の個数: 32

約数和(自身を含む): 33707520

約数和(自身を除く): 13420346

約数列:

[1, 2, 19, 37, 38, 47, 74, 94, 307, 614, 703, 893, 1406, 1739, 1786, 3478, 5833, 11359, 11666, 14429, 22718, 28858, 33041, 66082, 215821, 274151, 431642, 533873, 548302, 1067746, 10143587, 20287174]

約数ペア:

[(1, 20287174), (2, 10143587), (19, 1067746), (37, 548302), (38, 533873), (47, 431642), (74, 274151), (94, 215821), (307, 66082), (614, 33041), (703, 28858), (893, 22718), (1406, 14429), (1739, 11666), (1786, 11359), (3478, 5833)]