78301321

素因数分解:

$7^1\times {\mathrm{103}}^1\times {\mathrm{223}}^1\times {\mathrm{487}}^1$

素因数の和:820

約数の個数: 16

約数和(自身を含む): 90947584

約数和(自身を除く): 12646263

約数列:

[1, 7, 103, 223, 487, 721, 1561, 3409, 22969, 50161, 108601, 160783, 351127, 760207, 11185903, 78301321]

約数ペア:

[(1, 78301321), (7, 11185903), (103, 760207), (223, 351127), (487, 160783), (721, 108601), (1561, 50161), (3409, 22969)]