19647966

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{251897}}^1$

素因数の和:251915

約数の個数: 16

約数和(自身を含む): 42318864

約数和(自身を除く): 22670898

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 251897, 503794, 755691, 1511382, 3274661, 6549322, 9823983, 19647966]

約数ペア:

[(1, 19647966), (2, 9823983), (3, 6549322), (6, 3274661), (13, 1511382), (26, 755691), (39, 503794), (78, 251897)]