7428981

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{433}}^1$

素因数の和:505

約数の個数: 32

約数和(自身を含む): 12221440

約数和(自身を除く): 4792459

約数列:

[1, 3, 7, 19, 21, 43, 57, 129, 133, 301, 399, 433, 817, 903, 1299, 2451, 3031, 5719, 8227, 9093, 17157, 18619, 24681, 55857, 57589, 130333, 172767, 353761, 390999, 1061283, 2476327, 7428981]

約数ペア:

[(1, 7428981), (3, 2476327), (7, 1061283), (19, 390999), (21, 353761), (43, 172767), (57, 130333), (129, 57589), (133, 55857), (301, 24681), (399, 18619), (433, 17157), (817, 9093), (903, 8227), (1299, 5719), (2451, 3031)]