20621061

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{13399}}^1$

素因数の和:13430

約数の個数: 20

約数和(自身を含む): 32428000

約数和(自身を除く): 11806939

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 513, 1539, 13399, 40197, 120591, 254581, 361773, 763743, 1085319, 2291229, 6873687, 20621061]

約数ペア:

[(1, 20621061), (3, 6873687), (9, 2291229), (19, 1085319), (27, 763743), (57, 361773), (81, 254581), (171, 120591), (513, 40197), (1539, 13399)]