21189242

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{137}}^1\times {\mathrm{4549}}^1$

素因数の和:4705

約数の個数: 16

約数和(自身を含む): 33906600

約数和(自身を除く): 12717358

約数列:

[1, 2, 17, 34, 137, 274, 2329, 4549, 4658, 9098, 77333, 154666, 623213, 1246426, 10594621, 21189242]

約数ペア:

[(1, 21189242), (2, 10594621), (17, 1246426), (34, 623213), (137, 154666), (274, 77333), (2329, 9098), (4549, 4658)]