19391275

素因数分解:

$5^2\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{191}}^1$

素因数の和:363

約数の個数: 24

約数和(自身を含む): 25141248

約数和(自身を除く): 5749973

約数列:

[1, 5, 25, 31, 131, 155, 191, 655, 775, 955, 3275, 4061, 4775, 5921, 20305, 25021, 29605, 101525, 125105, 148025, 625525, 775651, 3878255, 19391275]

約数ペア:

[(1, 19391275), (5, 3878255), (25, 775651), (31, 625525), (131, 148025), (155, 125105), (191, 101525), (655, 29605), (775, 25021), (955, 20305), (3275, 5921), (4061, 4775)]