20342105

素因数分解:

$5^1\times 7^2\times {\mathrm{79}}^1\times {\mathrm{1051}}^1$

素因数の和:1149

約数の個数: 24

約数和(自身を含む): 28782720

約数和(自身を除く): 8440615

約数列:

[1, 5, 7, 35, 49, 79, 245, 395, 553, 1051, 2765, 3871, 5255, 7357, 19355, 36785, 51499, 83029, 257495, 415145, 581203, 2906015, 4068421, 20342105]

約数ペア:

[(1, 20342105), (5, 4068421), (7, 2906015), (35, 581203), (49, 415145), (79, 257495), (245, 83029), (395, 51499), (553, 36785), (1051, 19355), (2765, 7357), (3871, 5255)]