21721098

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{517169}}^1$

素因数の和:517181

約数の個数: 16

約数和(自身を含む): 49648320

約数和(自身を除く): 27927222

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 517169, 1034338, 1551507, 3103014, 3620183, 7240366, 10860549, 21721098]

約数ペア:

[(1, 21721098), (2, 10860549), (3, 7240366), (6, 3620183), (7, 3103014), (14, 1551507), (21, 1034338), (42, 517169)]