20438579

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{971}}^1$

素因数の和:1106

約数の個数: 16

約数和(自身を含む): 24385536

約数和(自身を除く): 3946957

約数列:

[1, 7, 31, 97, 217, 679, 971, 3007, 6797, 21049, 30101, 94187, 210707, 659309, 2919797, 20438579]

約数ペア:

[(1, 20438579), (7, 2919797), (31, 659309), (97, 210707), (217, 94187), (679, 30101), (971, 21049), (3007, 6797)]