25823637

素因数分解:

$3^3\times 7^2\times {\mathrm{131}}^1\times {\mathrm{149}}^1$

素因数の和:303

約数の個数: 48

約数和(自身を含む): 45144000

約数和(自身を除く): 19320363

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 131, 147, 149, 189, 393, 441, 447, 917, 1043, 1179, 1323, 1341, 2751, 3129, 3537, 4023, 6419, 7301, 8253, 9387, 19257, 19519, 21903, 24759, 28161, 57771, 58557, 65709, 136633, 173313, 175671, 197127, 409899, 527013, 956431, 1229697, 2869293, 3689091, 8607879, 25823637]

約数ペア:

[(1, 25823637), (3, 8607879), (7, 3689091), (9, 2869293), (21, 1229697), (27, 956431), (49, 527013), (63, 409899), (131, 197127), (147, 175671), (149, 173313), (189, 136633), (393, 65709), (441, 58557), (447, 57771), (917, 28161), (1043, 24759), (1179, 21903), (1323, 19519), (1341, 19257), (2751, 9387), (3129, 8253), (3537, 7301), (4023, 6419)]