19798121

素因数分解:

$7^1\times {\mathrm{41}}^1\times {\mathrm{101}}^1\times {\mathrm{683}}^1$

素因数の和:832

約数の個数: 16

約数和(自身を含む): 23442048

約数和(自身を除く): 3643927

約数列:

[1, 7, 41, 101, 287, 683, 707, 4141, 4781, 28003, 28987, 68983, 196021, 482881, 2828303, 19798121]

約数ペア:

[(1, 19798121), (7, 2828303), (41, 482881), (101, 196021), (287, 68983), (683, 28987), (707, 28003), (4141, 4781)]