19338865

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{2237}}^1$

素因数の和:2281

約数の個数: 32

約数和(自身を含む): 30078720

約数和(自身を除く): 10739855

約数列:

[1, 5, 7, 13, 19, 35, 65, 91, 95, 133, 247, 455, 665, 1235, 1729, 2237, 8645, 11185, 15659, 29081, 42503, 78295, 145405, 203567, 212515, 297521, 552539, 1017835, 1487605, 2762695, 3867773, 19338865]

約数ペア:

[(1, 19338865), (5, 3867773), (7, 2762695), (13, 1487605), (19, 1017835), (35, 552539), (65, 297521), (91, 212515), (95, 203567), (133, 145405), (247, 78295), (455, 42503), (665, 29081), (1235, 15659), (1729, 11185), (2237, 8645)]