201621615

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{60821}}^1$

素因数の和:60859

約数の個数: 32

約数和(自身を含む): 367851456

約数和(自身を除く): 166229841

約数列:

[1, 3, 5, 13, 15, 17, 39, 51, 65, 85, 195, 221, 255, 663, 1105, 3315, 60821, 182463, 304105, 790673, 912315, 1033957, 2372019, 3101871, 3953365, 5169785, 11860095, 13441441, 15509355, 40324323, 67207205, 201621615]

約数ペア:

[(1, 201621615), (3, 67207205), (5, 40324323), (13, 15509355), (15, 13441441), (17, 11860095), (39, 5169785), (51, 3953365), (65, 3101871), (85, 2372019), (195, 1033957), (221, 912315), (255, 790673), (663, 304105), (1105, 182463), (3315, 60821)]