212340964

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{438721}}^1$

素因数の和:438747

約数の個数: 18

約数和(自身を含む): 408450182

約数和(自身を除く): 196109218

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 438721, 877442, 1754884, 4825931, 9651862, 19303724, 53085241, 106170482, 212340964]

約数ペア:

[(1, 212340964), (2, 106170482), (4, 53085241), (11, 19303724), (22, 9651862), (44, 4825931), (121, 1754884), (242, 877442), (484, 438721)]