28223139

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{823}}^1$

素因数の和:927

約数の個数: 32

約数和(自身を含む): 45563904

約数和(自身を除く): 17340765

約数列:

[1, 3, 7, 21, 23, 69, 71, 161, 213, 483, 497, 823, 1491, 1633, 2469, 4899, 5761, 11431, 17283, 18929, 34293, 56787, 58433, 132503, 175299, 397509, 409031, 1227093, 1343959, 4031877, 9407713, 28223139]

約数ペア:

[(1, 28223139), (3, 9407713), (7, 4031877), (21, 1343959), (23, 1227093), (69, 409031), (71, 397509), (161, 175299), (213, 132503), (483, 58433), (497, 56787), (823, 34293), (1491, 18929), (1633, 17283), (2469, 11431), (4899, 5761)]