221420764

素因数分解:

$2^2\times {\mathrm{3371}}^1\times {\mathrm{16421}}^1$

素因数の和:19796

約数の個数: 12

約数和(自身を含む): 387624888

約数和(自身を除く): 166204124

約数列:

[1, 2, 4, 3371, 6742, 13484, 16421, 32842, 65684, 55355191, 110710382, 221420764]

約数ペア:

[(1, 221420764), (2, 110710382), (4, 55355191), (3371, 65684), (6742, 32842), (13484, 16421)]