204890889

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{513511}}^1$

素因数の和:513540

約数の個数: 16

約数和(自身を含む): 328647680

約数和(自身を除く): 123756791

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 513511, 1540533, 3594577, 9756709, 10783731, 29270127, 68296963, 204890889]

約数ペア:

[(1, 204890889), (3, 68296963), (7, 29270127), (19, 10783731), (21, 9756709), (57, 3594577), (133, 1540533), (399, 513511)]