51215409

素因数分解:

$3^5\times 7^1\times {\mathrm{30109}}^1$

素因数の和:30131

約数の個数: 24

約数和(自身を含む): 87680320

約数和(自身を除く): 36464911

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 243, 567, 1701, 30109, 90327, 210763, 270981, 632289, 812943, 1896867, 2438829, 5690601, 7316487, 17071803, 51215409]

約数ペア:

[(1, 51215409), (3, 17071803), (7, 7316487), (9, 5690601), (21, 2438829), (27, 1896867), (63, 812943), (81, 632289), (189, 270981), (243, 210763), (567, 90327), (1701, 30109)]