19778584

素因数分解:

$2^3\times 7^1\times {\mathrm{151}}^1\times {\mathrm{2339}}^1$

素因数の和:2503

約数の個数: 32

約数和(自身を含む): 42681600

約数和(自身を除く): 22903016

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 151, 302, 604, 1057, 1208, 2114, 2339, 4228, 4678, 8456, 9356, 16373, 18712, 32746, 65492, 130984, 353189, 706378, 1412756, 2472323, 2825512, 4944646, 9889292, 19778584]

約数ペア:

[(1, 19778584), (2, 9889292), (4, 4944646), (7, 2825512), (8, 2472323), (14, 1412756), (28, 706378), (56, 353189), (151, 130984), (302, 65492), (604, 32746), (1057, 18712), (1208, 16373), (2114, 9356), (2339, 8456), (4228, 4678)]