28420693

素因数分解:

$7^1\times {\mathrm{61}}^1\times {\mathrm{101}}^1\times {\mathrm{659}}^1$

素因数の和:828

約数の個数: 16

約数和(自身を含む): 33390720

約数和(自身を除く): 4970027

約数列:

[1, 7, 61, 101, 427, 659, 707, 4613, 6161, 40199, 43127, 66559, 281393, 465913, 4060099, 28420693]

約数ペア:

[(1, 28420693), (7, 4060099), (61, 465913), (101, 281393), (427, 66559), (659, 43127), (707, 40199), (4613, 6161)]