20979135

素因数分解:

$3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{8179}}^1$

素因数の和:8212

約数の個数: 32

約数和(自身を含む): 39264000

約数和(自身を除く): 18284865

約数列:

[1, 3, 5, 9, 15, 19, 27, 45, 57, 95, 135, 171, 285, 513, 855, 2565, 8179, 24537, 40895, 73611, 122685, 155401, 220833, 368055, 466203, 777005, 1104165, 1398609, 2331015, 4195827, 6993045, 20979135]

約数ペア:

[(1, 20979135), (3, 6993045), (5, 4195827), (9, 2331015), (15, 1398609), (19, 1104165), (27, 777005), (45, 466203), (57, 368055), (95, 220833), (135, 155401), (171, 122685), (285, 73611), (513, 40895), (855, 24537), (2565, 8179)]