28104867

素因数分解:

$3^3\times 7^1\times {\mathrm{37}}^1\times {\mathrm{4019}}^1$

素因数の和:4072

約数の個数: 32

約数和(自身を含む): 48883200

約数和(自身を除く): 20778333

約数列:

[1, 3, 7, 9, 21, 27, 37, 63, 111, 189, 259, 333, 777, 999, 2331, 4019, 6993, 12057, 28133, 36171, 84399, 108513, 148703, 253197, 446109, 759591, 1040921, 1338327, 3122763, 4014981, 9368289, 28104867]

約数ペア:

[(1, 28104867), (3, 9368289), (7, 4014981), (9, 3122763), (21, 1338327), (27, 1040921), (37, 759591), (63, 446109), (111, 253197), (189, 148703), (259, 108513), (333, 84399), (777, 36171), (999, 28133), (2331, 12057), (4019, 6993)]