18423172376

素因数分解:

$2^3\times 7^1\times {\mathrm{491}}^1\times {\mathrm{670031}}^1$

素因数の和:670535

約数の個数: 32

約数和(自身を含む): 39558689280

約数和(自身を除く): 21135516904

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 491, 982, 1964, 3437, 3928, 6874, 13748, 27496, 670031, 1340062, 2680124, 4690217, 5360248, 9380434, 18760868, 37521736, 328985221, 657970442, 1315940884, 2302896547, 2631881768, 4605793094, 9211586188, 18423172376]

約数ペア:

[(1, 18423172376), (2, 9211586188), (4, 4605793094), (7, 2631881768), (8, 2302896547), (14, 1315940884), (28, 657970442), (56, 328985221), (491, 37521736), (982, 18760868), (1964, 9380434), (3437, 5360248), (3928, 4690217), (6874, 2680124), (13748, 1340062), (27496, 670031)]