18420804857

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{1257307}}^1$

素因数の和:1257357

約数の個数: 24

約数和(自身を含む): 24079962816

約数和(自身を除く): 5659157959

約数列:

[1, 7, 13, 23, 49, 91, 161, 299, 637, 1127, 2093, 14651, 1257307, 8801149, 16344991, 28918061, 61608043, 114414937, 202426427, 375934793, 800904559, 1416984989, 2631543551, 18420804857]

約数ペア:

[(1, 18420804857), (7, 2631543551), (13, 1416984989), (23, 800904559), (49, 375934793), (91, 202426427), (161, 114414937), (299, 61608043), (637, 28918061), (1127, 16344991), (2093, 8801149), (14651, 1257307)]