81221814

素因数分解:

$2^1\times 3^2\times {\mathrm{1697}}^1\times {\mathrm{2659}}^1$

素因数の和:4364

約数の個数: 24

約数和(自身を含む): 176150520

約数和(自身を除く): 94928706

約数列:

[1, 2, 3, 6, 9, 18, 1697, 2659, 3394, 5091, 5318, 7977, 10182, 15273, 15954, 23931, 30546, 47862, 4512323, 9024646, 13536969, 27073938, 40610907, 81221814]

約数ペア:

[(1, 81221814), (2, 40610907), (3, 27073938), (6, 13536969), (9, 9024646), (18, 4512323), (1697, 47862), (2659, 30546), (3394, 23931), (5091, 15954), (5318, 15273), (7977, 10182)]