71031981

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{83}}^1\times {\mathrm{157}}^1$

素因数の和:345

約数の個数: 32

約数和(自身を含む): 101928960

約数和(自身を除く): 30896979

約数列:

[1, 3, 23, 69, 79, 83, 157, 237, 249, 471, 1817, 1909, 3611, 5451, 5727, 6557, 10833, 12403, 13031, 19671, 37209, 39093, 150811, 285269, 299713, 452433, 855807, 899139, 1029449, 3088347, 23677327, 71031981]

約数ペア:

[(1, 71031981), (3, 23677327), (23, 3088347), (69, 1029449), (79, 899139), (83, 855807), (157, 452433), (237, 299713), (249, 285269), (471, 150811), (1817, 39093), (1909, 37209), (3611, 19671), (5451, 13031), (5727, 12403), (6557, 10833)]