81220707

素因数分解:

$3^2\times {\mathrm{61}}^1\times {\mathrm{337}}^1\times {\mathrm{439}}^1$

素因数の和:843

約数の個数: 24

約数和(自身を含む): 119868320

約数和(自身を除く): 38647613

約数列:

[1, 3, 9, 61, 183, 337, 439, 549, 1011, 1317, 3033, 3951, 20557, 26779, 61671, 80337, 147943, 185013, 241011, 443829, 1331487, 9024523, 27073569, 81220707]

約数ペア:

[(1, 81220707), (3, 27073569), (9, 9024523), (61, 1331487), (183, 443829), (337, 241011), (439, 185013), (549, 147943), (1011, 80337), (1317, 61671), (3033, 26779), (3951, 20557)]