21746564

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{997}}^1$

素因数の和:1068

約数の個数: 48

約数和(自身を含む): 46945920

約数和(自身を除く): 25199356

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 41, 76, 82, 133, 164, 266, 287, 532, 574, 779, 997, 1148, 1558, 1994, 3116, 3988, 5453, 6979, 10906, 13958, 18943, 21812, 27916, 37886, 40877, 75772, 81754, 132601, 163508, 265202, 286139, 530404, 572278, 776663, 1144556, 1553326, 3106652, 5436641, 10873282, 21746564]

約数ペア:

[(1, 21746564), (2, 10873282), (4, 5436641), (7, 3106652), (14, 1553326), (19, 1144556), (28, 776663), (38, 572278), (41, 530404), (76, 286139), (82, 265202), (133, 163508), (164, 132601), (266, 81754), (287, 75772), (532, 40877), (574, 37886), (779, 27916), (997, 21812), (1148, 18943), (1558, 13958), (1994, 10906), (3116, 6979), (3988, 5453)]