20155047

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{971}}^1$

素因数の和:1039

約数の個数: 32

約数和(自身を含む): 31912704

約数和(自身を除く): 11757657

約数列:

[1, 3, 11, 17, 33, 37, 51, 111, 187, 407, 561, 629, 971, 1221, 1887, 2913, 6919, 10681, 16507, 20757, 32043, 35927, 49521, 107781, 181577, 395197, 544731, 610759, 1185591, 1832277, 6718349, 20155047]

約数ペア:

[(1, 20155047), (3, 6718349), (11, 1832277), (17, 1185591), (33, 610759), (37, 544731), (51, 395197), (111, 181577), (187, 107781), (407, 49521), (561, 35927), (629, 32043), (971, 20757), (1221, 16507), (1887, 10681), (2913, 6919)]