19991076

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{331}}^1\times {\mathrm{719}}^1$

素因数の和:1064

約数の個数: 48

約数和(自身を含む): 53544960

約数和(自身を除く): 33553884

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 331, 662, 719, 993, 1324, 1438, 1986, 2157, 2317, 2876, 3972, 4314, 4634, 5033, 6951, 8628, 9268, 10066, 13902, 15099, 20132, 27804, 30198, 60396, 237989, 475978, 713967, 951956, 1427934, 1665923, 2855868, 3331846, 4997769, 6663692, 9995538, 19991076]

約数ペア:

[(1, 19991076), (2, 9995538), (3, 6663692), (4, 4997769), (6, 3331846), (7, 2855868), (12, 1665923), (14, 1427934), (21, 951956), (28, 713967), (42, 475978), (84, 237989), (331, 60396), (662, 30198), (719, 27804), (993, 20132), (1324, 15099), (1438, 13902), (1986, 10066), (2157, 9268), (2317, 8628), (2876, 6951), (3972, 5033), (4314, 4634)]