20543559

素因数分解:

$3^1\times {\mathrm{47}}^1\times {\mathrm{367}}^1\times {\mathrm{397}}^1$

素因数の和:814

約数の個数: 16

約数和(自身を含む): 28121088

約数和(自身を除く): 7577529

約数列:

[1, 3, 47, 141, 367, 397, 1101, 1191, 17249, 18659, 51747, 55977, 145699, 437097, 6847853, 20543559]

約数ペア:

[(1, 20543559), (3, 6847853), (47, 437097), (141, 145699), (367, 55977), (397, 51747), (1101, 18659), (1191, 17249)]