20931567755

素因数分解:

$5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{9804013}}^1$

素因数の和:9804086

約数の個数: 16

約数和(自身を含む): 29176745664

約数和(自身を除く): 8245177909

約数列:

[1, 5, 7, 35, 61, 305, 427, 2135, 9804013, 49020065, 68628091, 343140455, 598044793, 2990223965, 4186313551, 20931567755]

約数ペア:

[(1, 20931567755), (5, 4186313551), (7, 2990223965), (35, 598044793), (61, 343140455), (305, 68628091), (427, 49020065), (2135, 9804013)]