25278759

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{151}}^1$

素因数の和:276

約数の個数: 48

約数和(自身を含む): 42681600

約数和(自身を除く): 17402841

約数列:

[1, 3, 9, 11, 19, 33, 57, 89, 99, 151, 171, 209, 267, 453, 627, 801, 979, 1359, 1661, 1691, 1881, 2869, 2937, 4983, 5073, 8607, 8811, 13439, 14949, 15219, 18601, 25821, 31559, 40317, 55803, 94677, 120951, 147829, 167409, 255341, 284031, 443487, 766023, 1330461, 2298069, 2808751, 8426253, 25278759]

約数ペア:

[(1, 25278759), (3, 8426253), (9, 2808751), (11, 2298069), (19, 1330461), (33, 766023), (57, 443487), (89, 284031), (99, 255341), (151, 167409), (171, 147829), (209, 120951), (267, 94677), (453, 55803), (627, 40317), (801, 31559), (979, 25821), (1359, 18601), (1661, 15219), (1691, 14949), (1881, 13439), (2869, 8811), (2937, 8607), (4983, 5073)]