25456431

素因数分解:

$3^1\times 7^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{173}}^1$

素因数の和:221

約数の個数: 64

約数和(自身を含む): 46771200

約数和(自身を除く): 21314769

約数列:

[1, 3, 7, 11, 13, 21, 33, 39, 49, 77, 91, 143, 147, 173, 231, 273, 343, 429, 519, 539, 637, 1001, 1029, 1211, 1617, 1903, 1911, 2249, 3003, 3633, 3773, 4459, 5709, 6747, 7007, 8477, 11319, 13321, 13377, 15743, 21021, 24739, 25431, 39963, 47229, 49049, 59339, 74217, 93247, 110201, 147147, 173173, 178017, 279741, 330603, 519519, 652729, 771407, 1212211, 1958187, 2314221, 3636633, 8485477, 25456431]

約数ペア:

[(1, 25456431), (3, 8485477), (7, 3636633), (11, 2314221), (13, 1958187), (21, 1212211), (33, 771407), (39, 652729), (49, 519519), (77, 330603), (91, 279741), (143, 178017), (147, 173173), (173, 147147), (231, 110201), (273, 93247), (343, 74217), (429, 59339), (519, 49049), (539, 47229), (637, 39963), (1001, 25431), (1029, 24739), (1211, 21021), (1617, 15743), (1903, 13377), (1911, 13321), (2249, 11319), (3003, 8477), (3633, 7007), (3773, 6747), (4459, 5709)]