221216

素因数分解:

$2^5\times {\mathrm{31}}^1\times {\mathrm{223}}^1$

素因数の和:264

約数の個数: 24

約数和(自身を含む): 451584

約数和(自身を除く): 230368

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 124, 223, 248, 446, 496, 892, 992, 1784, 3568, 6913, 7136, 13826, 27652, 55304, 110608, 221216]

約数ペア:

[(1, 221216), (2, 110608), (4, 55304), (8, 27652), (16, 13826), (31, 7136), (32, 6913), (62, 3568), (124, 1784), (223, 992), (248, 892), (446, 496)]