19955529

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{103}}^2$

素因数の和:242

約数の個数: 36

約数和(自身を含む): 33424560

約数和(自身を除く): 13469031

約数列:

[1, 3, 9, 11, 19, 33, 57, 99, 103, 171, 209, 309, 627, 927, 1133, 1881, 1957, 3399, 5871, 10197, 10609, 17613, 21527, 31827, 64581, 95481, 116699, 193743, 201571, 350097, 604713, 1050291, 1814139, 2217281, 6651843, 19955529]

約数ペア:

[(1, 19955529), (3, 6651843), (9, 2217281), (11, 1814139), (19, 1050291), (33, 604713), (57, 350097), (99, 201571), (103, 193743), (171, 116699), (209, 95481), (309, 64581), (627, 31827), (927, 21527), (1133, 17613), (1881, 10609), (1957, 10197), (3399, 5871)]