1999396

素因数分解:

$2^2\times 7^2\times {\mathrm{101}}^2$

素因数の和:220

約数の個数: 27

約数和(自身を含む): 4110897

約数和(自身を除く): 2111501

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 101, 196, 202, 404, 707, 1414, 2828, 4949, 9898, 10201, 19796, 20402, 40804, 71407, 142814, 285628, 499849, 999698, 1999396]

約数ペア:

[(1, 1999396), (2, 999698), (4, 499849), (7, 285628), (14, 142814), (28, 71407), (49, 40804), (98, 20402), (101, 19796), (196, 10201), (202, 9898), (404, 4949), (707, 2828)]