881668319

素因数分解:

$7^2\times {\mathrm{61}}^1\times {\mathrm{397}}^1\times {\mathrm{743}}^1$

素因数の和:1215

約数の個数: 24

約数和(自身を含む): 1046459808

約数和(自身を除く): 164791489

約数列:

[1, 7, 49, 61, 397, 427, 743, 2779, 2989, 5201, 19453, 24217, 36407, 45323, 169519, 294971, 317261, 1186633, 2064797, 2220827, 14453579, 17993231, 125952617, 881668319]

約数ペア:

[(1, 881668319), (7, 125952617), (49, 17993231), (61, 14453579), (397, 2220827), (427, 2064797), (743, 1186633), (2779, 317261), (2989, 294971), (5201, 169519), (19453, 45323), (24217, 36407)]