2217655

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{661}}^1$

素因数の和:738

約数の個数: 16

約数和(自身を含む): 2955168

約数和(自身を除く): 737513

約数列:

[1, 5, 11, 55, 61, 305, 661, 671, 3305, 3355, 7271, 36355, 40321, 201605, 443531, 2217655]

約数ペア:

[(1, 2217655), (5, 443531), (11, 201605), (55, 40321), (61, 36355), (305, 7271), (661, 3355), (671, 3305)]