19949419

素因数分解:

$7^2\times {\mathrm{29}}^1\times {\mathrm{101}}^1\times {\mathrm{139}}^1$

素因数の和:283

約数の個数: 24

約数和(自身を含む): 24418800

約数和(自身を除く): 4469381

約数列:

[1, 7, 29, 49, 101, 139, 203, 707, 973, 1421, 2929, 4031, 4949, 6811, 14039, 20503, 28217, 98273, 143521, 197519, 407131, 687911, 2849917, 19949419]

約数ペア:

[(1, 19949419), (7, 2849917), (29, 687911), (49, 407131), (101, 197519), (139, 143521), (203, 98273), (707, 28217), (973, 20503), (1421, 14039), (2929, 6811), (4031, 4949)]