21174189

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{163}}^1$

素因数の和:281

約数の個数: 32

約数和(自身を含む): 31173120

約数和(自身を除く): 9998931

約数列:

[1, 3, 19, 43, 53, 57, 129, 159, 163, 489, 817, 1007, 2279, 2451, 3021, 3097, 6837, 7009, 8639, 9291, 21027, 25917, 43301, 129903, 133171, 164141, 371477, 399513, 492423, 1114431, 7058063, 21174189]

約数ペア:

[(1, 21174189), (3, 7058063), (19, 1114431), (43, 492423), (53, 399513), (57, 371477), (129, 164141), (159, 133171), (163, 129903), (489, 43301), (817, 25917), (1007, 21027), (2279, 9291), (2451, 8639), (3021, 7009), (3097, 6837)]