217997241

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{49669}}^1$

素因数の和:49709

約数の個数: 32

約数和(自身を含む): 381465600

約数和(自身を除く): 163468359

約数列:

[1, 3, 7, 11, 19, 21, 33, 57, 77, 133, 209, 231, 399, 627, 1463, 4389, 49669, 149007, 347683, 546359, 943711, 1043049, 1639077, 2831133, 3824513, 6605977, 10380821, 11473539, 19817931, 31142463, 72665747, 217997241]

約数ペア:

[(1, 217997241), (3, 72665747), (7, 31142463), (11, 19817931), (19, 11473539), (21, 10380821), (33, 6605977), (57, 3824513), (77, 2831133), (133, 1639077), (209, 1043049), (231, 943711), (399, 546359), (627, 347683), (1463, 149007), (4389, 49669)]