19864295

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{383}}^1$

素因数の和:463

約数の個数: 32

約数和(自身を含む): 27869184

約数和(自身を除く): 8004889

約数列:

[1, 5, 11, 23, 41, 55, 115, 205, 253, 383, 451, 943, 1265, 1915, 2255, 4213, 4715, 8809, 10373, 15703, 21065, 44045, 51865, 78515, 96899, 172733, 361169, 484495, 863665, 1805845, 3972859, 19864295]

約数ペア:

[(1, 19864295), (5, 3972859), (11, 1805845), (23, 863665), (41, 484495), (55, 361169), (115, 172733), (205, 96899), (253, 78515), (383, 51865), (451, 44045), (943, 21065), (1265, 15703), (1915, 10373), (2255, 8809), (4213, 4715)]