20775921

素因数分解:

$3^1\times {\mathrm{17}}^2\times {\mathrm{31}}^1\times {\mathrm{773}}^1$

素因数の和:841

約数の個数: 24

約数和(自身を含む): 30415104

約数和(自身を除く): 9639183

約数列:

[1, 3, 17, 31, 51, 93, 289, 527, 773, 867, 1581, 2319, 8959, 13141, 23963, 26877, 39423, 71889, 223397, 407371, 670191, 1222113, 6925307, 20775921]

約数ペア:

[(1, 20775921), (3, 6925307), (17, 1222113), (31, 670191), (51, 407371), (93, 223397), (289, 71889), (527, 39423), (773, 26877), (867, 23963), (1581, 13141), (2319, 8959)]