28285305417

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{157}}^1\times {\mathrm{645739}}^1$

素因数の和:645933

約数の個数: 24

約数和(自身を含む): 42443198720

約数和(自身を除く): 14157893303

約数列:

[1, 3, 9, 31, 93, 157, 279, 471, 1413, 4867, 14601, 43803, 645739, 1937217, 5811651, 20017909, 60053727, 101381023, 180161181, 304143069, 912429207, 3142811713, 9428435139, 28285305417]

約数ペア:

[(1, 28285305417), (3, 9428435139), (9, 3142811713), (31, 912429207), (93, 304143069), (157, 180161181), (279, 101381023), (471, 60053727), (1413, 20017909), (4867, 5811651), (14601, 1937217), (43803, 645739)]