221491251

素因数分解:

$3^2\times {\mathrm{59}}^1\times {\mathrm{449}}^1\times {\mathrm{929}}^1$

素因数の和:1443

約数の個数: 24

約数和(自身を含む): 326430000

約数和(自身を除く): 104938749

約数列:

[1, 3, 9, 59, 177, 449, 531, 929, 1347, 2787, 4041, 8361, 26491, 54811, 79473, 164433, 238419, 417121, 493299, 1251363, 3754089, 24610139, 73830417, 221491251]

約数ペア:

[(1, 221491251), (3, 73830417), (9, 24610139), (59, 3754089), (177, 1251363), (449, 493299), (531, 417121), (929, 238419), (1347, 164433), (2787, 79473), (4041, 54811), (8361, 26491)]