19809938

素因数分解:

$2^1\times {\mathrm{101}}^1\times {\mathrm{281}}^1\times {\mathrm{349}}^1$

素因数の和:733

約数の個数: 16

約数和(自身を含む): 30202200

約数和(自身を除く): 10392262

約数列:

[1, 2, 101, 202, 281, 349, 562, 698, 28381, 35249, 56762, 70498, 98069, 196138, 9904969, 19809938]

約数ペア:

[(1, 19809938), (2, 9904969), (101, 196138), (202, 98069), (281, 70498), (349, 56762), (562, 35249), (698, 28381)]