218210839

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{149153}}^1$

素因数の和:149190

約数の個数: 16

約数和(自身を含む): 286375680

約数和(自身を除く): 68164841

約数列:

[1, 7, 11, 19, 77, 133, 209, 1463, 149153, 1044071, 1640683, 2833907, 11484781, 19837349, 31172977, 218210839]

約数ペア:

[(1, 218210839), (7, 31172977), (11, 19837349), (19, 11484781), (77, 2833907), (133, 1640683), (209, 1044071), (1463, 149153)]