218956

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1$

素因数の和:133

約数の個数: 24

約数和(自身を含む): 418880

約数和(自身を除く): 199924

約数列:

[1, 2, 4, 19, 38, 43, 67, 76, 86, 134, 172, 268, 817, 1273, 1634, 2546, 2881, 3268, 5092, 5762, 11524, 54739, 109478, 218956]

約数ペア:

[(1, 218956), (2, 109478), (4, 54739), (19, 11524), (38, 5762), (43, 5092), (67, 3268), (76, 2881), (86, 2546), (134, 1634), (172, 1273), (268, 817)]