20842535

素因数分解:

$5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{3793}}^1$

素因数の和:3962

約数の個数: 16

約数和(自身を含む): 28773696

約数和(自身を除く): 7931161

約数列:

[1, 5, 7, 35, 157, 785, 1099, 3793, 5495, 18965, 26551, 132755, 595501, 2977505, 4168507, 20842535]

約数ペア:

[(1, 20842535), (5, 4168507), (7, 2977505), (35, 595501), (157, 132755), (785, 26551), (1099, 18965), (3793, 5495)]