394210881

素因数分解:

$3^5\times {\mathrm{991}}^1\times {\mathrm{1637}}^1$

素因数の和:2643

約数の個数: 24

約数和(自身を含む): 591462144

約数和(自身を除く): 197251263

約数列:

[1, 3, 9, 27, 81, 243, 991, 1637, 2973, 4911, 8919, 14733, 26757, 44199, 80271, 132597, 240813, 397791, 1622267, 4866801, 14600403, 43801209, 131403627, 394210881]

約数ペア:

[(1, 394210881), (3, 131403627), (9, 43801209), (27, 14600403), (81, 4866801), (243, 1622267), (991, 397791), (1637, 240813), (2973, 132597), (4911, 80271), (8919, 44199), (14733, 26757)]