21243417

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{4289}}^1$

素因数の和:4432

約数の個数: 16

約数和(自身を含む): 30750720

約数和(自身を除く): 9507303

約数列:

[1, 3, 13, 39, 127, 381, 1651, 4289, 4953, 12867, 55757, 167271, 544703, 1634109, 7081139, 21243417]

約数ペア:

[(1, 21243417), (3, 7081139), (13, 1634109), (39, 544703), (127, 167271), (381, 55757), (1651, 12867), (4289, 4953)]