19970872

素因数分解:

$2^3\times {\mathrm{1109}}^1\times {\mathrm{2251}}^1$

素因数の和:3366

約数の個数: 16

約数和(自身を含む): 37495800

約数和(自身を除く): 17524928

約数列:

[1, 2, 4, 8, 1109, 2218, 2251, 4436, 4502, 8872, 9004, 18008, 2496359, 4992718, 9985436, 19970872]

約数ペア:

[(1, 19970872), (2, 9985436), (4, 4992718), (8, 2496359), (1109, 18008), (2218, 9004), (2251, 8872), (4436, 4502)]