81329661

素因数分解:

$3^2\times 7^2\times {\mathrm{223}}^1\times {\mathrm{827}}^1$

素因数の和:1070

約数の個数: 36

約数和(自身を含む): 137434752

約数和(自身を除く): 56105091

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 223, 441, 669, 827, 1561, 2007, 2481, 4683, 5789, 7443, 10927, 14049, 17367, 32781, 40523, 52101, 98343, 121569, 184421, 364707, 553263, 1290947, 1659789, 3872841, 9036629, 11618523, 27109887, 81329661]

約数ペア:

[(1, 81329661), (3, 27109887), (7, 11618523), (9, 9036629), (21, 3872841), (49, 1659789), (63, 1290947), (147, 553263), (223, 364707), (441, 184421), (669, 121569), (827, 98343), (1561, 52101), (2007, 40523), (2481, 32781), (4683, 17367), (5789, 14049), (7443, 10927)]