21517616

素因数分解:

$2^4\times {\mathrm{167}}^1\times {\mathrm{8053}}^1$

素因数の和:8228

約数の個数: 20

約数和(自身を含む): 41945232

約数和(自身を除く): 20427616

約数列:

[1, 2, 4, 8, 16, 167, 334, 668, 1336, 2672, 8053, 16106, 32212, 64424, 128848, 1344851, 2689702, 5379404, 10758808, 21517616]

約数ペア:

[(1, 21517616), (2, 10758808), (4, 5379404), (8, 2689702), (16, 1344851), (167, 128848), (334, 64424), (668, 32212), (1336, 16106), (2672, 8053)]