21277179

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{30703}}^1$

素因数の和:30727

約数の個数: 24

約数和(自身を含む): 38318592

約数和(自身を除く): 17041413

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 77, 99, 231, 693, 30703, 92109, 214921, 276327, 337733, 644763, 1013199, 1934289, 2364131, 3039597, 7092393, 21277179]

約数ペア:

[(1, 21277179), (3, 7092393), (7, 3039597), (9, 2364131), (11, 1934289), (21, 1013199), (33, 644763), (63, 337733), (77, 276327), (99, 214921), (231, 92109), (693, 30703)]