21008404

素因数分解:

$2^2\times {\mathrm{101}}^1\times {\mathrm{149}}^1\times {\mathrm{349}}^1$

素因数の和:603

約数の個数: 24

約数和(自身を含む): 37485000

約数和(自身を除く): 16476596

約数列:

[1, 2, 4, 101, 149, 202, 298, 349, 404, 596, 698, 1396, 15049, 30098, 35249, 52001, 60196, 70498, 104002, 140996, 208004, 5252101, 10504202, 21008404]

約数ペア:

[(1, 21008404), (2, 10504202), (4, 5252101), (101, 208004), (149, 140996), (202, 104002), (298, 70498), (349, 60196), (404, 52001), (596, 35249), (698, 30098), (1396, 15049)]