20597985

素因数分解:

$3^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{9739}}^1$

素因数の和:9797

約数の個数: 24

約数和(自身を含む): 36466560

約数和(自身を除く): 15868575

約数列:

[1, 3, 5, 9, 15, 45, 47, 141, 235, 423, 705, 2115, 9739, 29217, 48695, 87651, 146085, 438255, 457733, 1373199, 2288665, 4119597, 6865995, 20597985]

約数ペア:

[(1, 20597985), (3, 6865995), (5, 4119597), (9, 2288665), (15, 1373199), (45, 457733), (47, 438255), (141, 146085), (235, 87651), (423, 48695), (705, 29217), (2115, 9739)]