221771517

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{181}}^1\times {\mathrm{347}}^1$

素因数の和:649

約数の個数: 32

約数和(自身を含む): 328333824

約数和(自身を除く): 106562307

約数列:

[1, 3, 11, 33, 107, 181, 321, 347, 543, 1041, 1177, 1991, 3531, 3817, 5973, 11451, 19367, 37129, 58101, 62807, 111387, 188421, 213037, 408419, 639111, 690877, 1225257, 2072631, 6720349, 20161047, 73923839, 221771517]

約数ペア:

[(1, 221771517), (3, 73923839), (11, 20161047), (33, 6720349), (107, 2072631), (181, 1225257), (321, 690877), (347, 639111), (543, 408419), (1041, 213037), (1177, 188421), (1991, 111387), (3531, 62807), (3817, 58101), (5973, 37129), (11451, 19367)]