21014992

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{77261}}^1$

素因数の和:77286

約数の個数: 20

約数和(自身を含む): 43112196

約数和(自身を除く): 22097204

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 77261, 154522, 309044, 618088, 1236176, 1313437, 2626874, 5253748, 10507496, 21014992]

約数ペア:

[(1, 21014992), (2, 10507496), (4, 5253748), (8, 2626874), (16, 1313437), (17, 1236176), (34, 618088), (68, 309044), (136, 154522), (272, 77261)]