28706319

素因数分解:

$3^5\times {\mathrm{17}}^1\times {\mathrm{6949}}^1$

素因数の和:6981

約数の個数: 24

約数和(自身を含む): 45536400

約数和(自身を除く): 16830081

約数列:

[1, 3, 9, 17, 27, 51, 81, 153, 243, 459, 1377, 4131, 6949, 20847, 62541, 118133, 187623, 354399, 562869, 1063197, 1688607, 3189591, 9568773, 28706319]

約数ペア:

[(1, 28706319), (3, 9568773), (9, 3189591), (17, 1688607), (27, 1063197), (51, 562869), (81, 354399), (153, 187623), (243, 118133), (459, 62541), (1377, 20847), (4131, 6949)]