20990102

素因数分解:

$2^1\times 7^1\times {\mathrm{839}}^1\times {\mathrm{1787}}^1$

素因数の和:2635

約数の個数: 16

約数和(自身を含む): 36046080

約数和(自身を除く): 15055978

約数列:

[1, 2, 7, 14, 839, 1678, 1787, 3574, 5873, 11746, 12509, 25018, 1499293, 2998586, 10495051, 20990102]

約数ペア:

[(1, 20990102), (2, 10495051), (7, 2998586), (14, 1499293), (839, 25018), (1678, 12509), (1787, 11746), (3574, 5873)]