81872007

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{449}}^1\times {\mathrm{457}}^1$

素因数の和:935

約数の個数: 32

約数和(自身を含む): 131904000

約数和(自身を除く): 50031993

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 449, 457, 1347, 1371, 3143, 3199, 8531, 8683, 9429, 9597, 25593, 26049, 59717, 60781, 179151, 182343, 205193, 615579, 1436351, 3898667, 4309053, 11696001, 27290669, 81872007]

約数ペア:

[(1, 81872007), (3, 27290669), (7, 11696001), (19, 4309053), (21, 3898667), (57, 1436351), (133, 615579), (399, 205193), (449, 182343), (457, 179151), (1347, 60781), (1371, 59717), (3143, 26049), (3199, 25593), (8531, 9597), (8683, 9429)]