19571972

素因数分解:

$2^2\times 7^2\times {\mathrm{61}}^1\times {\mathrm{1637}}^1$

素因数の和:1716

約数の個数: 36

約数和(自身を含む): 40520844

約数和(自身を除く): 20948872

約数列:

[1, 2, 4, 7, 14, 28, 49, 61, 98, 122, 196, 244, 427, 854, 1637, 1708, 2989, 3274, 5978, 6548, 11459, 11956, 22918, 45836, 80213, 99857, 160426, 199714, 320852, 399428, 698999, 1397998, 2795996, 4892993, 9785986, 19571972]

約数ペア:

[(1, 19571972), (2, 9785986), (4, 4892993), (7, 2795996), (14, 1397998), (28, 698999), (49, 399428), (61, 320852), (98, 199714), (122, 160426), (196, 99857), (244, 80213), (427, 45836), (854, 22918), (1637, 11956), (1708, 11459), (2989, 6548), (3274, 5978)]