218193778

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{431213}}^1$

素因数の和:431249

約数の個数: 16

約数和(自身を含む): 372568896

約数和(自身を除く): 154375118

約数列:

[1, 2, 11, 22, 23, 46, 253, 506, 431213, 862426, 4743343, 9486686, 9917899, 19835798, 109096889, 218193778]

約数ペア:

[(1, 218193778), (2, 109096889), (11, 19835798), (22, 9917899), (23, 9486686), (46, 4743343), (253, 862426), (506, 431213)]