16987420

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{2939}}^1$

素因数の和:2982

約数の個数: 36

約数和(自身を含む): 37908360

約数和(自身を除く): 20920940

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 289, 340, 578, 1156, 1445, 2890, 2939, 5780, 5878, 11756, 14695, 29390, 49963, 58780, 99926, 199852, 249815, 499630, 849371, 999260, 1698742, 3397484, 4246855, 8493710, 16987420]

約数ペア:

[(1, 16987420), (2, 8493710), (4, 4246855), (5, 3397484), (10, 1698742), (17, 999260), (20, 849371), (34, 499630), (68, 249815), (85, 199852), (170, 99926), (289, 58780), (340, 49963), (578, 29390), (1156, 14695), (1445, 11756), (2890, 5878), (2939, 5780)]