78821967

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{2129}}^1$

素因数の和:2223

約数の個数: 32

約数和(自身を含む): 125959680

約数和(自身を除く): 47137713

約数列:

[1, 3, 7, 21, 41, 43, 123, 129, 287, 301, 861, 903, 1763, 2129, 5289, 6387, 12341, 14903, 37023, 44709, 87289, 91547, 261867, 274641, 611023, 640829, 1833069, 1922487, 3753427, 11260281, 26273989, 78821967]

約数ペア:

[(1, 78821967), (3, 26273989), (7, 11260281), (21, 3753427), (41, 1922487), (43, 1833069), (123, 640829), (129, 611023), (287, 274641), (301, 261867), (861, 91547), (903, 87289), (1763, 44709), (2129, 37023), (5289, 14903), (6387, 12341)]