20683197

素因数分解:

$3^2\times {\mathrm{53}}^1\times {\mathrm{131}}^1\times {\mathrm{331}}^1$

素因数の和:521

約数の個数: 24

約数和(自身を含む): 30764448

約数和(自身を除く): 10081251

約数列:

[1, 3, 9, 53, 131, 159, 331, 393, 477, 993, 1179, 2979, 6943, 17543, 20829, 43361, 52629, 62487, 130083, 157887, 390249, 2298133, 6894399, 20683197]

約数ペア:

[(1, 20683197), (3, 6894399), (9, 2298133), (53, 390249), (131, 157887), (159, 130083), (331, 62487), (393, 52629), (477, 43361), (993, 20829), (1179, 17543), (2979, 6943)]