20998698

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{499969}}^1$

素因数の和:499981

約数の個数: 16

約数和(自身を含む): 47997120

約数和(自身を除く): 26998422

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 499969, 999938, 1499907, 2999814, 3499783, 6999566, 10499349, 20998698]

約数ペア:

[(1, 20998698), (2, 10499349), (3, 6999566), (6, 3499783), (7, 2999814), (14, 1499907), (21, 999938), (42, 499969)]