17990245

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{2081}}^1$

素因数の和:2125

約数の個数: 32

約数和(自身を含む): 27982080

約数和(自身を除く): 9991835

約数列:

[1, 5, 7, 13, 19, 35, 65, 91, 95, 133, 247, 455, 665, 1235, 1729, 2081, 8645, 10405, 14567, 27053, 39539, 72835, 135265, 189371, 197695, 276773, 514007, 946855, 1383865, 2570035, 3598049, 17990245]

約数ペア:

[(1, 17990245), (5, 3598049), (7, 2570035), (13, 1383865), (19, 946855), (35, 514007), (65, 276773), (91, 197695), (95, 189371), (133, 135265), (247, 72835), (455, 39539), (665, 27053), (1235, 14567), (1729, 10405), (2081, 8645)]