20212493

素因数分解:

$7^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{607}}^1$

素因数の和:752

約数の個数: 16

約数和(自身を含む): 23814144

約数和(自身を除く): 3601651

約数列:

[1, 7, 67, 71, 469, 497, 607, 4249, 4757, 33299, 40669, 43097, 284683, 301679, 2887499, 20212493]

約数ペア:

[(1, 20212493), (7, 2887499), (67, 301679), (71, 284683), (469, 43097), (497, 40669), (607, 33299), (4249, 4757)]