20535753

素因数分解:

$3^1\times 7^4\times {\mathrm{2851}}^1$

素因数の和:2882

約数の個数: 20

約数和(自身を含む): 31953808

約数和(自身を除く): 11418055

約数列:

[1, 3, 7, 21, 49, 147, 343, 1029, 2401, 2851, 7203, 8553, 19957, 59871, 139699, 419097, 977893, 2933679, 6845251, 20535753]

約数ペア:

[(1, 20535753), (3, 6845251), (7, 2933679), (21, 977893), (49, 419097), (147, 139699), (343, 59871), (1029, 19957), (2401, 8553), (2851, 7203)]