21659439

素因数分解:

$3^1\times {\mathrm{41}}^1\times {\mathrm{293}}^1\times {\mathrm{601}}^1$

素因数の和:938

約数の個数: 16

約数和(自身を含む): 29733984

約数和(自身を除く): 8074545

約数列:

[1, 3, 41, 123, 293, 601, 879, 1803, 12013, 24641, 36039, 73923, 176093, 528279, 7219813, 21659439]

約数ペア:

[(1, 21659439), (3, 7219813), (41, 528279), (123, 176093), (293, 73923), (601, 36039), (879, 24641), (1803, 12013)]