20806173

素因数分解:

$3^3\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{353}}^1$

素因数の和:458

約数の個数: 32

約数和(自身を含む): 32284800

約数和(自身を除く): 11478627

約数列:

[1, 3, 9, 27, 37, 59, 111, 177, 333, 353, 531, 999, 1059, 1593, 2183, 3177, 6549, 9531, 13061, 19647, 20827, 39183, 58941, 62481, 117549, 187443, 352647, 562329, 770599, 2311797, 6935391, 20806173]

約数ペア:

[(1, 20806173), (3, 6935391), (9, 2311797), (27, 770599), (37, 562329), (59, 352647), (111, 187443), (177, 117549), (333, 62481), (353, 58941), (531, 39183), (999, 20827), (1059, 19647), (1593, 13061), (2183, 9531), (3177, 6549)]