215569269

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{140071}}^1$

素因数の和:140102

約数の個数: 20

約数和(自身を含む): 338974240

約数和(自身を除く): 123404971

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 513, 1539, 140071, 420213, 1260639, 2661349, 3781917, 7984047, 11345751, 23952141, 71856423, 215569269]

約数ペア:

[(1, 215569269), (3, 71856423), (9, 23952141), (19, 11345751), (27, 7984047), (57, 3781917), (81, 2661349), (171, 1260639), (513, 420213), (1539, 140071)]