19753855

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{103}}^1\times {\mathrm{317}}^1$

素因数の和:447

約数の個数: 24

約数和(自身を含む): 26391456

約数和(自身を除く): 6637601

約数列:

[1, 5, 11, 55, 103, 121, 317, 515, 605, 1133, 1585, 3487, 5665, 12463, 17435, 32651, 38357, 62315, 163255, 191785, 359161, 1795805, 3950771, 19753855]

約数ペア:

[(1, 19753855), (5, 3950771), (11, 1795805), (55, 359161), (103, 191785), (121, 163255), (317, 62315), (515, 38357), (605, 32651), (1133, 17435), (1585, 12463), (3487, 5665)]