20557505

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{367}}^1\times {\mathrm{659}}^1$

素因数の和:1048

約数の個数: 16

約数和(自身を含む): 26231040

約数和(自身を除く): 5673535

約数列:

[1, 5, 17, 85, 367, 659, 1835, 3295, 6239, 11203, 31195, 56015, 241853, 1209265, 4111501, 20557505]

約数ペア:

[(1, 20557505), (5, 4111501), (17, 1209265), (85, 241853), (367, 56015), (659, 31195), (1835, 11203), (3295, 6239)]