208481679

素因数分解:

$3^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{80713}}^1$

素因数の和:80767

約数の個数: 24

約数和(自身を含む): 352558752

約数和(自身を除く): 144077073

約数列:

[1, 3, 7, 9, 21, 41, 63, 123, 287, 369, 861, 2583, 80713, 242139, 564991, 726417, 1694973, 3309233, 5084919, 9927699, 23164631, 29783097, 69493893, 208481679]

約数ペア:

[(1, 208481679), (3, 69493893), (7, 29783097), (9, 23164631), (21, 9927699), (41, 5084919), (63, 3309233), (123, 1694973), (287, 726417), (369, 564991), (861, 242139), (2583, 80713)]