18936423

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{401}}^1$

素因数の和:477

約数の個数: 40

約数和(自身を含む): 31520016

約数和(自身を除く): 12583593

約数列:

[1, 3, 9, 11, 27, 33, 53, 81, 99, 159, 297, 401, 477, 583, 891, 1203, 1431, 1749, 3609, 4293, 4411, 5247, 10827, 13233, 15741, 21253, 32481, 39699, 47223, 63759, 119097, 191277, 233783, 357291, 573831, 701349, 1721493, 2104047, 6312141, 18936423]

約数ペア:

[(1, 18936423), (3, 6312141), (9, 2104047), (11, 1721493), (27, 701349), (33, 573831), (53, 357291), (81, 233783), (99, 191277), (159, 119097), (297, 63759), (401, 47223), (477, 39699), (583, 32481), (891, 21253), (1203, 15741), (1431, 13233), (1749, 10827), (3609, 5247), (4293, 4411)]