20178449538

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{258698071}}^1$

素因数の和:258698089

約数の個数: 16

約数和(自身を含む): 43461276096

約数和(自身を除く): 23282826558

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 258698071, 517396142, 776094213, 1552188426, 3363074923, 6726149846, 10089224769, 20178449538]

約数ペア:

[(1, 20178449538), (2, 10089224769), (3, 6726149846), (6, 3363074923), (13, 1552188426), (26, 776094213), (39, 517396142), (78, 258698071)]