19118979

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{313}}^1\times {\mathrm{617}}^1$

素因数の和:947

約数の個数: 24

約数和(自身を含む): 30272112

約数和(自身を除く): 11153133

約数列:

[1, 3, 9, 11, 33, 99, 313, 617, 939, 1851, 2817, 3443, 5553, 6787, 10329, 20361, 30987, 61083, 193121, 579363, 1738089, 2124331, 6372993, 19118979]

約数ペア:

[(1, 19118979), (3, 6372993), (9, 2124331), (11, 1738089), (33, 579363), (99, 193121), (313, 61083), (617, 30987), (939, 20361), (1851, 10329), (2817, 6787), (3443, 5553)]