19997316

素因数分解:

$2^2\times 3^2\times {\mathrm{37}}^1\times {\mathrm{15013}}^1$

素因数の和:15060

約数の個数: 36

約数和(自身を含む): 51918412

約数和(自身を除く): 31921096

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 37, 74, 111, 148, 222, 333, 444, 666, 1332, 15013, 30026, 45039, 60052, 90078, 135117, 180156, 270234, 540468, 555481, 1110962, 1666443, 2221924, 3332886, 4999329, 6665772, 9998658, 19997316]

約数ペア:

[(1, 19997316), (2, 9998658), (3, 6665772), (4, 4999329), (6, 3332886), (9, 2221924), (12, 1666443), (18, 1110962), (36, 555481), (37, 540468), (74, 270234), (111, 180156), (148, 135117), (222, 90078), (333, 60052), (444, 45039), (666, 30026), (1332, 15013)]