19561995

素因数分解:

$3^2\times 5^1\times {\mathrm{113}}^1\times {\mathrm{3847}}^1$

素因数の和:3971

約数の個数: 24

約数和(自身を含む): 34216416

約数和(自身を除く): 14654421

約数列:

[1, 3, 5, 9, 15, 45, 113, 339, 565, 1017, 1695, 3847, 5085, 11541, 19235, 34623, 57705, 173115, 434711, 1304133, 2173555, 3912399, 6520665, 19561995]

約数ペア:

[(1, 19561995), (3, 6520665), (5, 3912399), (9, 2173555), (15, 1304133), (45, 434711), (113, 173115), (339, 57705), (565, 34623), (1017, 19235), (1695, 11541), (3847, 5085)]