28407663

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{2237}}^1$

素因数の和:2343

約数の個数: 24

約数和(自身を含む): 43990128

約数和(自身を除く): 15582465

約数列:

[1, 3, 9, 17, 51, 83, 153, 249, 747, 1411, 2237, 4233, 6711, 12699, 20133, 38029, 114087, 185671, 342261, 557013, 1671039, 3156407, 9469221, 28407663]

約数ペア:

[(1, 28407663), (3, 9469221), (9, 3156407), (17, 1671039), (51, 557013), (83, 342261), (153, 185671), (249, 114087), (747, 38029), (1411, 20133), (2237, 12699), (4233, 6711)]