78082921

素因数分解:

$7^4\times {\mathrm{17}}^1\times {\mathrm{1913}}^1$

素因数の和:1958

約数の個数: 20

約数和(自身を含む): 96500052

約数和(自身を除く): 18417131

約数列:

[1, 7, 17, 49, 119, 343, 833, 1913, 2401, 5831, 13391, 32521, 40817, 93737, 227647, 656159, 1593529, 4593113, 11154703, 78082921]

約数ペア:

[(1, 78082921), (7, 11154703), (17, 4593113), (49, 1593529), (119, 656159), (343, 227647), (833, 93737), (1913, 40817), (2401, 32521), (5831, 13391)]