257336163

素因数分解:

$3^3\times 7^1\times {\mathrm{71}}^1\times {\mathrm{127}}^1\times {\mathrm{151}}^1$

素因数の和:365

約数の個数: 64

約数和(自身を含む): 448266240

約数和(自身を除く): 190930077

約数列:

[1, 3, 7, 9, 21, 27, 63, 71, 127, 151, 189, 213, 381, 453, 497, 639, 889, 1057, 1143, 1359, 1491, 1917, 2667, 3171, 3429, 4077, 4473, 8001, 9017, 9513, 10721, 13419, 19177, 24003, 27051, 28539, 32163, 57531, 63119, 75047, 81153, 96489, 134239, 172593, 189357, 225141, 243459, 289467, 402717, 517779, 568071, 675423, 1208151, 1361567, 1704213, 2026269, 3624453, 4084701, 9530969, 12254103, 28592907, 36762309, 85778721, 257336163]

約数ペア:

[(1, 257336163), (3, 85778721), (7, 36762309), (9, 28592907), (21, 12254103), (27, 9530969), (63, 4084701), (71, 3624453), (127, 2026269), (151, 1704213), (189, 1361567), (213, 1208151), (381, 675423), (453, 568071), (497, 517779), (639, 402717), (889, 289467), (1057, 243459), (1143, 225141), (1359, 189357), (1491, 172593), (1917, 134239), (2667, 96489), (3171, 81153), (3429, 75047), (4077, 63119), (4473, 57531), (8001, 32163), (9017, 28539), (9513, 27051), (10721, 24003), (13419, 19177)]