16721757

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{1091}}^1$

素因数の和:1241

約数の個数: 24

約数和(自身を含む): 26234208

約数和(自身を除く): 9512451

約数列:

[1, 3, 9, 13, 39, 117, 131, 393, 1091, 1179, 1703, 3273, 5109, 9819, 14183, 15327, 42549, 127647, 142921, 428763, 1286289, 1857973, 5573919, 16721757]

約数ペア:

[(1, 16721757), (3, 5573919), (9, 1857973), (13, 1286289), (39, 428763), (117, 142921), (131, 127647), (393, 42549), (1091, 15327), (1179, 14183), (1703, 9819), (3273, 5109)]