21206512

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{32327}}^1$

素因数の和:32376

約数の個数: 20

約数和(自身を含む): 42091056

約数和(自身を除く): 20884544

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 32327, 64654, 129308, 258616, 517232, 1325407, 2650814, 5301628, 10603256, 21206512]

約数ペア:

[(1, 21206512), (2, 10603256), (4, 5301628), (8, 2650814), (16, 1325407), (41, 517232), (82, 258616), (164, 129308), (328, 64654), (656, 32327)]