19945953

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{659}}^1$

素因数の和:746

約数の個数: 32

約数和(自身を含む): 31680000

約数和(自身を除く): 11734047

約数列:

[1, 3, 9, 19, 27, 57, 59, 171, 177, 513, 531, 659, 1121, 1593, 1977, 3363, 5931, 10089, 12521, 17793, 30267, 37563, 38881, 112689, 116643, 338067, 349929, 738739, 1049787, 2216217, 6648651, 19945953]

約数ペア:

[(1, 19945953), (3, 6648651), (9, 2216217), (19, 1049787), (27, 738739), (57, 349929), (59, 338067), (171, 116643), (177, 112689), (513, 38881), (531, 37563), (659, 30267), (1121, 17793), (1593, 12521), (1977, 10089), (3363, 5931)]