72975819

素因数分解:

$3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{107}}^1\times {\mathrm{691}}^1$

素因数の和:855

約数の個数: 32

約数和(自身を含む): 114794496

約数和(自身を除く): 41818677

約数列:

[1, 3, 7, 21, 47, 107, 141, 321, 329, 691, 749, 987, 2073, 2247, 4837, 5029, 14511, 15087, 32477, 35203, 73937, 97431, 105609, 221811, 227339, 517559, 682017, 1552677, 3475039, 10425117, 24325273, 72975819]

約数ペア:

[(1, 72975819), (3, 24325273), (7, 10425117), (21, 3475039), (47, 1552677), (107, 682017), (141, 517559), (321, 227339), (329, 221811), (691, 105609), (749, 97431), (987, 73937), (2073, 35203), (2247, 32477), (4837, 15087), (5029, 14511)]