216454964

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{447221}}^1$

素因数の和:447247

約数の個数: 18

約数和(自身を含む): 416363682

約数和(自身を除く): 199908718

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 447221, 894442, 1788884, 4919431, 9838862, 19677724, 54113741, 108227482, 216454964]

約数ペア:

[(1, 216454964), (2, 108227482), (4, 54113741), (11, 19677724), (22, 9838862), (44, 4919431), (121, 1788884), (242, 894442), (484, 447221)]