20545847567

素因数分解:

$7^1\times {\mathrm{139}}^1\times {\mathrm{2711}}^1\times {\mathrm{7789}}^1$

素因数の和:10646

約数の個数: 16

約数和(自身を含む): 23661657600

約数和(自身を除く): 3115810033

約数列:

[1, 7, 139, 973, 2711, 7789, 18977, 54523, 376829, 1082671, 2637803, 7578697, 21115979, 147811853, 2935121081, 20545847567]

約数ペア:

[(1, 20545847567), (7, 2935121081), (139, 147811853), (973, 21115979), (2711, 7578697), (7789, 2637803), (18977, 1082671), (54523, 376829)]