20499897

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{691}}^1$

素因数の和:765

約数の個数: 32

約数和(自身を含む): 31887360

約数和(自身を除く): 11387463

約数列:

[1, 3, 11, 29, 31, 33, 87, 93, 319, 341, 691, 899, 957, 1023, 2073, 2697, 7601, 9889, 20039, 21421, 22803, 29667, 60117, 64263, 220429, 235631, 621209, 661287, 706893, 1863627, 6833299, 20499897]

約数ペア:

[(1, 20499897), (3, 6833299), (11, 1863627), (29, 706893), (31, 661287), (33, 621209), (87, 235631), (93, 220429), (319, 64263), (341, 60117), (691, 29667), (899, 22803), (957, 21421), (1023, 20039), (2073, 9889), (2697, 7601)]