18800895

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{4337}}^1$

素因数の和:4379

約数の個数: 24

約数和(自身を含む): 31962384

約数和(自身を除く): 13161489

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 289, 867, 1445, 4335, 4337, 13011, 21685, 65055, 73729, 221187, 368645, 1105935, 1253393, 3760179, 6266965, 18800895]

約数ペア:

[(1, 18800895), (3, 6266965), (5, 3760179), (15, 1253393), (17, 1105935), (51, 368645), (85, 221187), (255, 73729), (289, 65055), (867, 21685), (1445, 13011), (4335, 4337)]