20996914127

素因数分解:

$7^1\times {\mathrm{61}}^1\times {\mathrm{83}}^1\times {\mathrm{389}}^1\times {\mathrm{1523}}^1$

素因数の和:2063

約数の個数: 32

約数和(自身を含む): 24763415040

約数和(自身を除く): 3766500913

約数列:

[1, 7, 61, 83, 389, 427, 581, 1523, 2723, 5063, 10661, 23729, 32287, 35441, 92903, 126409, 166103, 226009, 592447, 650321, 884863, 1969507, 4147129, 7710949, 13786549, 36139267, 49173101, 53976643, 252974869, 344211707, 2999559161, 20996914127]

約数ペア:

[(1, 20996914127), (7, 2999559161), (61, 344211707), (83, 252974869), (389, 53976643), (427, 49173101), (581, 36139267), (1523, 13786549), (2723, 7710949), (5063, 4147129), (10661, 1969507), (23729, 884863), (32287, 650321), (35441, 592447), (92903, 226009), (126409, 166103)]