21594729

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{163}}^1$

素因数の和:301

約数の個数: 32

約数和(自身を含む): 32327680

約数和(自身を除く): 10732951

約数列:

[1, 3, 13, 39, 43, 79, 129, 163, 237, 489, 559, 1027, 1677, 2119, 3081, 3397, 6357, 7009, 10191, 12877, 21027, 38631, 44161, 91117, 132483, 167401, 273351, 502203, 553711, 1661133, 7198243, 21594729]

約数ペア:

[(1, 21594729), (3, 7198243), (13, 1661133), (39, 553711), (43, 502203), (79, 273351), (129, 167401), (163, 132483), (237, 91117), (489, 44161), (559, 38631), (1027, 21027), (1677, 12877), (2119, 10191), (3081, 7009), (3397, 6357)]