18900838

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{521}}^1$

素因数の和:648

約数の個数: 32

約数和(自身を含む): 33149088

約数和(自身を除く): 14248250

約数列:

[1, 2, 11, 17, 22, 34, 97, 187, 194, 374, 521, 1042, 1067, 1649, 2134, 3298, 5731, 8857, 11462, 17714, 18139, 36278, 50537, 97427, 101074, 194854, 555907, 859129, 1111814, 1718258, 9450419, 18900838]

約数ペア:

[(1, 18900838), (2, 9450419), (11, 1718258), (17, 1111814), (22, 859129), (34, 555907), (97, 194854), (187, 101074), (194, 97427), (374, 50537), (521, 36278), (1042, 18139), (1067, 17714), (1649, 11462), (2134, 8857), (3298, 5731)]