639890523

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{464699}}^1$

素因数の和:464728

約数の個数: 20

約数和(自身を含む): 1012116600

約数和(自身を除く): 372226077

約数列:

[1, 3, 9, 17, 27, 51, 81, 153, 459, 1377, 464699, 1394097, 4182291, 7899883, 12546873, 23699649, 37640619, 71098947, 213296841, 639890523]

約数ペア:

[(1, 639890523), (3, 213296841), (9, 71098947), (17, 37640619), (27, 23699649), (51, 12546873), (81, 7899883), (153, 4182291), (459, 1394097), (1377, 464699)]