209990004

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{2499881}}^1$

素因数の和:2499895

約数の個数: 24

約数和(自身を含む): 559973568

約数和(自身を除く): 349983564

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 2499881, 4999762, 7499643, 9999524, 14999286, 17499167, 29998572, 34998334, 52497501, 69996668, 104995002, 209990004]

約数ペア:

[(1, 209990004), (2, 104995002), (3, 69996668), (4, 52497501), (6, 34998334), (7, 29998572), (12, 17499167), (14, 14999286), (21, 9999524), (28, 7499643), (42, 4999762), (84, 2499881)]