72813321

素因数分解:

$3^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{18947}}^1$

素因数の和:19021

約数の個数: 24

約数和(自身を含む): 122176704

約数和(自身を除く): 49363383

約数列:

[1, 3, 7, 9, 21, 61, 63, 183, 427, 549, 1281, 3843, 18947, 56841, 132629, 170523, 397887, 1155767, 1193661, 3467301, 8090369, 10401903, 24271107, 72813321]

約数ペア:

[(1, 72813321), (3, 24271107), (7, 10401903), (9, 8090369), (21, 3467301), (61, 1193661), (63, 1155767), (183, 397887), (427, 170523), (549, 132629), (1281, 56841), (3843, 18947)]