2021054455

素因数分解:

$5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{617}}^1\times {\mathrm{3019}}^1$

素因数の和:3679

約数の個数: 32

約数和(自身を含む): 2866728960

約数和(自身を除く): 845674505

約数列:

[1, 5, 7, 31, 35, 155, 217, 617, 1085, 3019, 3085, 4319, 15095, 19127, 21133, 21595, 93589, 95635, 105665, 133889, 467945, 655123, 669445, 1862723, 3275615, 9313615, 13039061, 57744413, 65195305, 288722065, 404210891, 2021054455]

約数ペア:

[(1, 2021054455), (5, 404210891), (7, 288722065), (31, 65195305), (35, 57744413), (155, 13039061), (217, 9313615), (617, 3275615), (1085, 1862723), (3019, 669445), (3085, 655123), (4319, 467945), (15095, 133889), (19127, 105665), (21133, 95635), (21595, 93589)]