18853815

素因数分解:

$3^1\times 5^1\times {\mathrm{47}}^2\times {\mathrm{569}}^1$

素因数の和:671

約数の個数: 24

約数和(自身を含む): 30875760

約数和(自身を除く): 12021945

約数列:

[1, 3, 5, 15, 47, 141, 235, 569, 705, 1707, 2209, 2845, 6627, 8535, 11045, 26743, 33135, 80229, 133715, 401145, 1256921, 3770763, 6284605, 18853815]

約数ペア:

[(1, 18853815), (3, 6284605), (5, 3770763), (15, 1256921), (47, 401145), (141, 133715), (235, 80229), (569, 33135), (705, 26743), (1707, 11045), (2209, 8535), (2845, 6627)]