19916138

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{569}}^1$

素因数の和:662

約数の個数: 32

約数和(自身を含む): 34309440

約数和(自身を除く): 14393302

約数列:

[1, 2, 11, 22, 37, 43, 74, 86, 407, 473, 569, 814, 946, 1138, 1591, 3182, 6259, 12518, 17501, 21053, 24467, 35002, 42106, 48934, 231583, 269137, 463166, 538274, 905279, 1810558, 9958069, 19916138]

約数ペア:

[(1, 19916138), (2, 9958069), (11, 1810558), (22, 905279), (37, 538274), (43, 463166), (74, 269137), (86, 231583), (407, 48934), (473, 42106), (569, 35002), (814, 24467), (946, 21053), (1138, 17501), (1591, 12518), (3182, 6259)]