1721493

素因数分解:

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

素因数の和:466

約数の個数: 20

約数和(自身を含む): 2626668

約数和(自身を除く): 905175

約数列:

[1, 3, 9, 27, 53, 81, 159, 401, 477, 1203, 1431, 3609, 4293, 10827, 21253, 32481, 63759, 191277, 573831, 1721493]

約数ペア:

[(1, 1721493), (3, 573831), (9, 191277), (27, 63759), (53, 32481), (81, 21253), (159, 10827), (401, 4293), (477, 3609), (1203, 1431)]