19261991

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{251}}^1\times {\mathrm{577}}^1$

素因数の和:854

約数の個数: 16

約数和(自身を含む): 23304960

約数和(自身を除く): 4042969

約数列:

[1, 7, 19, 133, 251, 577, 1757, 4039, 4769, 10963, 33383, 76741, 144827, 1013789, 2751713, 19261991]

約数ペア:

[(1, 19261991), (7, 2751713), (19, 1013789), (133, 144827), (251, 76741), (577, 33383), (1757, 10963), (4039, 4769)]