405997839

素因数分解:

$3^5\times {\mathrm{13}}^1\times {\mathrm{128521}}^1$

素因数の和:128549

約数の個数: 24

約数和(自身を含む): 654948112

約数和(自身を除く): 248950273

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 243, 351, 1053, 3159, 128521, 385563, 1156689, 1670773, 3470067, 5012319, 10410201, 15036957, 31230603, 45110871, 135332613, 405997839]

約数ペア:

[(1, 405997839), (3, 135332613), (9, 45110871), (13, 31230603), (27, 15036957), (39, 10410201), (81, 5012319), (117, 3470067), (243, 1670773), (351, 1156689), (1053, 385563), (3159, 128521)]