81223513

素因数分解:

$7^1\times {\mathrm{61}}^1\times {\mathrm{223}}^1\times {\mathrm{853}}^1$

素因数の和:1144

約数の個数: 16

約数和(自身を含む): 94882816

約数和(自身を除く): 13659303

約数列:

[1, 7, 61, 223, 427, 853, 1561, 5971, 13603, 52033, 95221, 190219, 364231, 1331533, 11603359, 81223513]

約数ペア:

[(1, 81223513), (7, 11603359), (61, 1331533), (223, 364231), (427, 190219), (853, 95221), (1561, 52033), (5971, 13603)]