31387305

素因数分解:

$3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{211}}^2$

素因数の和:477

約数の個数: 24

約数和(自身を含む): 51532416

約数和(自身を除く): 20145111

約数列:

[1, 3, 5, 15, 47, 141, 211, 235, 633, 705, 1055, 3165, 9917, 29751, 44521, 49585, 133563, 148755, 222605, 667815, 2092487, 6277461, 10462435, 31387305]

約数ペア:

[(1, 31387305), (3, 10462435), (5, 6277461), (15, 2092487), (47, 667815), (141, 222605), (211, 148755), (235, 133563), (633, 49585), (705, 44521), (1055, 29751), (3165, 9917)]