87289407

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{63391}}^1$

素因数の和:63420

約数の個数: 20

約数和(自身を含む): 138067776

約数和(自身を除く): 50778369

約数列:

[1, 3, 9, 17, 27, 51, 81, 153, 459, 1377, 63391, 190173, 570519, 1077647, 1711557, 3232941, 5134671, 9698823, 29096469, 87289407]

約数ペア:

[(1, 87289407), (3, 29096469), (9, 9698823), (17, 5134671), (27, 3232941), (51, 1711557), (81, 1077647), (153, 570519), (459, 190173), (1377, 63391)]