20648763

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{13417}}^1$

素因数の和:13448

約数の個数: 20

約数和(自身を含む): 32471560

約数和(自身を除く): 11822797

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 513, 1539, 13417, 40251, 120753, 254923, 362259, 764769, 1086777, 2294307, 6882921, 20648763]

約数ペア:

[(1, 20648763), (3, 6882921), (9, 2294307), (19, 1086777), (27, 764769), (57, 362259), (81, 254923), (171, 120753), (513, 40251), (1539, 13417)]