21553059

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{103}}^1\times {\mathrm{373}}^1$

素因数の和:507

約数の個数: 32

約数和(自身を含む): 33606144

約数和(自身を除く): 12053085

約数列:

[1, 3, 11, 17, 33, 51, 103, 187, 309, 373, 561, 1119, 1133, 1751, 3399, 4103, 5253, 6341, 12309, 19023, 19261, 38419, 57783, 69751, 115257, 209253, 422609, 653123, 1267827, 1959369, 7184353, 21553059]

約数ペア:

[(1, 21553059), (3, 7184353), (11, 1959369), (17, 1267827), (33, 653123), (51, 422609), (103, 209253), (187, 115257), (309, 69751), (373, 57783), (561, 38419), (1119, 19261), (1133, 19023), (1751, 12309), (3399, 6341), (4103, 5253)]