1999897676

素因数分解:

$2^2\times 7^1\times {\mathrm{401}}^1\times {\mathrm{178117}}^1$

素因数の和:178529

約数の個数: 24

約数和(自身を含む): 4009792416

約数和(自身を除く): 2009894740

約数列:

[1, 2, 4, 7, 14, 28, 401, 802, 1604, 2807, 5614, 11228, 178117, 356234, 712468, 1246819, 2493638, 4987276, 71424917, 142849834, 285699668, 499974419, 999948838, 1999897676]

約数ペア:

[(1, 1999897676), (2, 999948838), (4, 499974419), (7, 285699668), (14, 142849834), (28, 71424917), (401, 4987276), (802, 2493638), (1604, 1246819), (2807, 712468), (5614, 356234), (11228, 178117)]