315721917

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{263761}}^1$

素因数の和:263793

約数の個数: 24

約数和(自身を含む): 548624960

約数和(自身を除く): 232903043

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 171, 399, 1197, 263761, 791283, 1846327, 2373849, 5011459, 5538981, 15034377, 16616943, 35080213, 45103131, 105240639, 315721917]

約数ペア:

[(1, 315721917), (3, 105240639), (7, 45103131), (9, 35080213), (19, 16616943), (21, 15034377), (57, 5538981), (63, 5011459), (133, 2373849), (171, 1846327), (399, 791283), (1197, 263761)]