20724687

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{569}}^1$

素因数の和:668

約数の個数: 32

約数和(自身を含む): 32832000

約数和(自身を除く): 12107313

約数列:

[1, 3, 9, 19, 27, 57, 71, 171, 213, 513, 569, 639, 1349, 1707, 1917, 4047, 5121, 10811, 12141, 15363, 32433, 36423, 40399, 97299, 121197, 291897, 363591, 767581, 1090773, 2302743, 6908229, 20724687]

約数ペア:

[(1, 20724687), (3, 6908229), (9, 2302743), (19, 1090773), (27, 767581), (57, 363591), (71, 291897), (171, 121197), (213, 97299), (513, 40399), (569, 36423), (639, 32433), (1349, 15363), (1707, 12141), (1917, 10811), (4047, 5121)]