19873935

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{313}}^1$

素因数の和:424

約数の個数: 48

約数和(自身を含む): 37031904

約数和(自身を除く): 17157969

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 83, 85, 153, 249, 255, 313, 415, 747, 765, 939, 1245, 1411, 1565, 2817, 3735, 4233, 4695, 5321, 7055, 12699, 14085, 15963, 21165, 25979, 26605, 47889, 63495, 77937, 79815, 129895, 233811, 239445, 389685, 441643, 1169055, 1324929, 2208215, 3974787, 6624645, 19873935]

約数ペア:

[(1, 19873935), (3, 6624645), (5, 3974787), (9, 2208215), (15, 1324929), (17, 1169055), (45, 441643), (51, 389685), (83, 239445), (85, 233811), (153, 129895), (249, 79815), (255, 77937), (313, 63495), (415, 47889), (747, 26605), (765, 25979), (939, 21165), (1245, 15963), (1411, 14085), (1565, 12699), (2817, 7055), (3735, 5321), (4233, 4695)]