21274743

素因数分解:

$3^1\times 7^1\times {\mathrm{607}}^1\times {\mathrm{1669}}^1$

素因数の和:2286

約数の個数: 16

約数和(自身を含む): 32491520

約数和(自身を除く): 11216777

約数列:

[1, 3, 7, 21, 607, 1669, 1821, 4249, 5007, 11683, 12747, 35049, 1013083, 3039249, 7091581, 21274743]

約数ペア:

[(1, 21274743), (3, 7091581), (7, 3039249), (21, 1013083), (607, 35049), (1669, 12747), (1821, 11683), (4249, 5007)]