247407777

素因数分解:

$3^5\times {\mathrm{401}}^1\times {\mathrm{2539}}^1$

素因数の和:2955

約数の個数: 24

約数和(自身を含む): 371673120

約数和(自身を除く): 124265343

約数列:

[1, 3, 9, 27, 81, 243, 401, 1203, 2539, 3609, 7617, 10827, 22851, 32481, 68553, 97443, 205659, 616977, 1018139, 3054417, 9163251, 27489753, 82469259, 247407777]

約数ペア:

[(1, 247407777), (3, 82469259), (9, 27489753), (27, 9163251), (81, 3054417), (243, 1018139), (401, 616977), (1203, 205659), (2539, 97443), (3609, 68553), (7617, 32481), (10827, 22851)]